21000279736

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{435257}}^1$

素因数の和:435463

約数の個数: 32

約数和(自身を含む): 40687917840

約数和(自身を除く): 19687638104

約数列:

[1, 2, 4, 8, 37, 74, 148, 163, 296, 326, 652, 1304, 6031, 12062, 24124, 48248, 435257, 870514, 1741028, 3482056, 16104509, 32209018, 64418036, 70946891, 128836072, 141893782, 283787564, 567575128, 2625034967, 5250069934, 10500139868, 21000279736]

約数ペア:

[(1, 21000279736), (2, 10500139868), (4, 5250069934), (8, 2625034967), (37, 567575128), (74, 283787564), (148, 141893782), (163, 128836072), (296, 70946891), (326, 64418036), (652, 32209018), (1304, 16104509), (6031, 3482056), (12062, 1741028), (24124, 870514), (48248, 435257)]