21216200

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{2467}}^1$

素因数の和:2526

約数の個数: 48

約数和(自身を含む): 50495280

約数和(自身を除く): 29279080

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1720, 2150, 2467, 4300, 4934, 8600, 9868, 12335, 19736, 24670, 49340, 61675, 98680, 106081, 123350, 212162, 246700, 424324, 493400, 530405, 848648, 1060810, 2121620, 2652025, 4243240, 5304050, 10608100, 21216200]

約数ペア:

[(1, 21216200), (2, 10608100), (4, 5304050), (5, 4243240), (8, 2652025), (10, 2121620), (20, 1060810), (25, 848648), (40, 530405), (43, 493400), (50, 424324), (86, 246700), (100, 212162), (172, 123350), (200, 106081), (215, 98680), (344, 61675), (430, 49340), (860, 24670), (1075, 19736), (1720, 12335), (2150, 9868), (2467, 8600), (4300, 4934)]