21007656

素因数分解:

$2^3\times 3^2\times {\mathrm{283}}^1\times {\mathrm{1031}}^1$

素因数の和:1326

約数の個数: 48

約数和(自身を含む): 57152160

約数和(自身を除く): 36144504

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 283, 566, 849, 1031, 1132, 1698, 2062, 2264, 2547, 3093, 3396, 4124, 5094, 6186, 6792, 8248, 9279, 10188, 12372, 18558, 20376, 24744, 37116, 74232, 291773, 583546, 875319, 1167092, 1750638, 2334184, 2625957, 3501276, 5251914, 7002552, 10503828, 21007656]

約数ペア:

[(1, 21007656), (2, 10503828), (3, 7002552), (4, 5251914), (6, 3501276), (8, 2625957), (9, 2334184), (12, 1750638), (18, 1167092), (24, 875319), (36, 583546), (72, 291773), (283, 74232), (566, 37116), (849, 24744), (1031, 20376), (1132, 18558), (1698, 12372), (2062, 10188), (2264, 9279), (2547, 8248), (3093, 6792), (3396, 6186), (4124, 5094)]