21025200

素因数分解:

$2^4\times 3^1\times 5^2\times 7^1\times {\mathrm{2503}}^1$

素因数の和:2531

約数の個数: 120

約数和(自身を含む): 77003008

約数和(自身を除く): 55977808

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, 105, 112, 120, 140, 150, 168, 175, 200, 210, 240, 280, 300, 336, 350, 400, 420, 525, 560, 600, 700, 840, 1050, 1200, 1400, 1680, 2100, 2503, 2800, 4200, 5006, 7509, 8400, 10012, 12515, 15018, 17521, 20024, 25030, 30036, 35042, 37545, 40048, 50060, 52563, 60072, 62575, 70084, 75090, 87605, 100120, 105126, 120144, 125150, 140168, 150180, 175210, 187725, 200240, 210252, 250300, 262815, 280336, 300360, 350420, 375450, 420504, 438025, 500600, 525630, 600720, 700840, 750900, 841008, 876050, 1001200, 1051260, 1314075, 1401680, 1501800, 1752100, 2102520, 2628150, 3003600, 3504200, 4205040, 5256300, 7008400, 10512600, 21025200]

約数ペア:

[(1, 21025200), (2, 10512600), (3, 7008400), (4, 5256300), (5, 4205040), (6, 3504200), (7, 3003600), (8, 2628150), (10, 2102520), (12, 1752100), (14, 1501800), (15, 1401680), (16, 1314075), (20, 1051260), (21, 1001200), (24, 876050), (25, 841008), (28, 750900), (30, 700840), (35, 600720), (40, 525630), (42, 500600), (48, 438025), (50, 420504), (56, 375450), (60, 350420), (70, 300360), (75, 280336), (80, 262815), (84, 250300), (100, 210252), (105, 200240), (112, 187725), (120, 175210), (140, 150180), (150, 140168), (168, 125150), (175, 120144), (200, 105126), (210, 100120), (240, 87605), (280, 75090), (300, 70084), (336, 62575), (350, 60072), (400, 52563), (420, 50060), (525, 40048), (560, 37545), (600, 35042), (700, 30036), (840, 25030), (1050, 20024), (1200, 17521), (1400, 15018), (1680, 12515), (2100, 10012), (2503, 8400), (2800, 7509), (4200, 5006)]