20996949921

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{617}}^1\times {\mathrm{1453}}^1$

素因数の和:2321

約数の個数: 32

約数和(自身を含む): 28955584128

約数和(自身を除く): 7958634207

約数列:

[1, 3, 37, 111, 211, 617, 633, 1453, 1851, 4359, 7807, 22829, 23421, 53761, 68487, 130187, 161283, 306583, 390561, 896501, 919749, 2689503, 4816919, 11343571, 14450757, 33170537, 34030713, 99511611, 189161711, 567485133, 6998983307, 20996949921]

約数ペア:

[(1, 20996949921), (3, 6998983307), (37, 567485133), (111, 189161711), (211, 99511611), (617, 34030713), (633, 33170537), (1453, 14450757), (1851, 11343571), (4359, 4816919), (7807, 2689503), (22829, 919749), (23421, 896501), (53761, 390561), (68487, 306583), (130187, 161283)]