21917000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:160

約数の個数: 128

約数和(自身を含む): 61102080

約数和(自身を除く): 39185080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 31, 35, 40, 50, 56, 62, 70, 100, 101, 124, 125, 140, 155, 175, 200, 202, 217, 248, 250, 280, 310, 350, 404, 434, 500, 505, 620, 700, 707, 775, 808, 868, 875, 1000, 1010, 1085, 1240, 1400, 1414, 1550, 1736, 1750, 2020, 2170, 2525, 2828, 3100, 3131, 3500, 3535, 3875, 4040, 4340, 5050, 5425, 5656, 6200, 6262, 7000, 7070, 7750, 8680, 10100, 10850, 12524, 12625, 14140, 15500, 15655, 17675, 20200, 21700, 21917, 25048, 25250, 27125, 28280, 31000, 31310, 35350, 43400, 43834, 50500, 54250, 62620, 70700, 78275, 87668, 88375, 101000, 108500, 109585, 125240, 141400, 156550, 175336, 176750, 217000, 219170, 313100, 353500, 391375, 438340, 547925, 626200, 707000, 782750, 876680, 1095850, 1565500, 2191700, 2739625, 3131000, 4383400, 5479250, 10958500, 21917000]

約数ペア:

[(1, 21917000), (2, 10958500), (4, 5479250), (5, 4383400), (7, 3131000), (8, 2739625), (10, 2191700), (14, 1565500), (20, 1095850), (25, 876680), (28, 782750), (31, 707000), (35, 626200), (40, 547925), (50, 438340), (56, 391375), (62, 353500), (70, 313100), (100, 219170), (101, 217000), (124, 176750), (125, 175336), (140, 156550), (155, 141400), (175, 125240), (200, 109585), (202, 108500), (217, 101000), (248, 88375), (250, 87668), (280, 78275), (310, 70700), (350, 62620), (404, 54250), (434, 50500), (500, 43834), (505, 43400), (620, 35350), (700, 31310), (707, 31000), (775, 28280), (808, 27125), (868, 25250), (875, 25048), (1000, 21917), (1010, 21700), (1085, 20200), (1240, 17675), (1400, 15655), (1414, 15500), (1550, 14140), (1736, 12625), (1750, 12524), (2020, 10850), (2170, 10100), (2525, 8680), (2828, 7750), (3100, 7070), (3131, 7000), (3500, 6262), (3535, 6200), (3875, 5656), (4040, 5425), (4340, 5050)]