21210000

素因数分解:

$2^4\times 3^1\times 5^4\times 7^1\times {\mathrm{101}}^1$

素因数の和:139

約数の個数: 200

約数和(自身を含む): 79024704

約数和(自身を除く): 57814704

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 35, 40, 42, 48, 50, 56, 60, 70, 75, 80, 84, 100, 101, 105, 112, 120, 125, 140, 150, 168, 175, 200, 202, 210, 240, 250, 280, 300, 303, 336, 350, 375, 400, 404, 420, 500, 505, 525, 560, 600, 606, 625, 700, 707, 750, 808, 840, 875, 1000, 1010, 1050, 1200, 1212, 1250, 1400, 1414, 1500, 1515, 1616, 1680, 1750, 1875, 2000, 2020, 2100, 2121, 2424, 2500, 2525, 2625, 2800, 2828, 3000, 3030, 3500, 3535, 3750, 4040, 4200, 4242, 4375, 4848, 5000, 5050, 5250, 5656, 6000, 6060, 7000, 7070, 7500, 7575, 8080, 8400, 8484, 8750, 10000, 10100, 10500, 10605, 11312, 12120, 12625, 13125, 14000, 14140, 15000, 15150, 16968, 17500, 17675, 20200, 21000, 21210, 24240, 25250, 26250, 28280, 30000, 30300, 33936, 35000, 35350, 37875, 40400, 42000, 42420, 50500, 52500, 53025, 56560, 60600, 63125, 70000, 70700, 75750, 84840, 88375, 101000, 105000, 106050, 121200, 126250, 141400, 151500, 169680, 176750, 189375, 202000, 210000, 212100, 252500, 265125, 282800, 303000, 353500, 378750, 424200, 441875, 505000, 530250, 606000, 707000, 757500, 848400, 883750, 1010000, 1060500, 1325625, 1414000, 1515000, 1767500, 2121000, 2651250, 3030000, 3535000, 4242000, 5302500, 7070000, 10605000, 21210000]

約数ペア:

[(1, 21210000), (2, 10605000), (3, 7070000), (4, 5302500), (5, 4242000), (6, 3535000), (7, 3030000), (8, 2651250), (10, 2121000), (12, 1767500), (14, 1515000), (15, 1414000), (16, 1325625), (20, 1060500), (21, 1010000), (24, 883750), (25, 848400), (28, 757500), (30, 707000), (35, 606000), (40, 530250), (42, 505000), (48, 441875), (50, 424200), (56, 378750), (60, 353500), (70, 303000), (75, 282800), (80, 265125), (84, 252500), (100, 212100), (101, 210000), (105, 202000), (112, 189375), (120, 176750), (125, 169680), (140, 151500), (150, 141400), (168, 126250), (175, 121200), (200, 106050), (202, 105000), (210, 101000), (240, 88375), (250, 84840), (280, 75750), (300, 70700), (303, 70000), (336, 63125), (350, 60600), (375, 56560), (400, 53025), (404, 52500), (420, 50500), (500, 42420), (505, 42000), (525, 40400), (560, 37875), (600, 35350), (606, 35000), (625, 33936), (700, 30300), (707, 30000), (750, 28280), (808, 26250), (840, 25250), (875, 24240), (1000, 21210), (1010, 21000), (1050, 20200), (1200, 17675), (1212, 17500), (1250, 16968), (1400, 15150), (1414, 15000), (1500, 14140), (1515, 14000), (1616, 13125), (1680, 12625), (1750, 12120), (1875, 11312), (2000, 10605), (2020, 10500), (2100, 10100), (2121, 10000), (2424, 8750), (2500, 8484), (2525, 8400), (2625, 8080), (2800, 7575), (2828, 7500), (3000, 7070), (3030, 7000), (3500, 6060), (3535, 6000), (3750, 5656), (4040, 5250), (4200, 5050), (4242, 5000), (4375, 4848)]