17949921

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{241}}^1$

素因数の和:353

約数の個数: 32

約数和(自身を含む): 27367296

約数和(自身を除く): 9417375

約数列:

[1, 3, 11, 33, 37, 61, 111, 183, 241, 407, 671, 723, 1221, 2013, 2257, 2651, 6771, 7953, 8917, 14701, 24827, 26751, 44103, 74481, 98087, 161711, 294261, 485133, 543937, 1631811, 5983307, 17949921]

約数ペア:

[(1, 17949921), (3, 5983307), (11, 1631811), (33, 543937), (37, 485133), (61, 294261), (111, 161711), (183, 98087), (241, 74481), (407, 44103), (671, 26751), (723, 24827), (1221, 14701), (2013, 8917), (2257, 7953), (2651, 6771)]