21578950

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{479}}^1$

素因数の和:561

約数の個数: 48

約数和(自身を含む): 43390080

約数和(自身を除く): 21811130

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 53, 85, 106, 170, 265, 425, 479, 530, 850, 901, 958, 1325, 1802, 2395, 2650, 4505, 4790, 8143, 9010, 11975, 16286, 22525, 23950, 25387, 40715, 45050, 50774, 81430, 126935, 203575, 253870, 407150, 431579, 634675, 863158, 1269350, 2157895, 4315790, 10789475, 21578950]

約数ペア:

[(1, 21578950), (2, 10789475), (5, 4315790), (10, 2157895), (17, 1269350), (25, 863158), (34, 634675), (50, 431579), (53, 407150), (85, 253870), (106, 203575), (170, 126935), (265, 81430), (425, 50774), (479, 45050), (530, 40715), (850, 25387), (901, 23950), (958, 22525), (1325, 16286), (1802, 11975), (2395, 9010), (2650, 8143), (4505, 4790)]