21651734

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:440

約数の個数: 32

約数和(自身を含む): 36542016

約数和(自身を除く): 14890282

約数列:

[1, 2, 13, 26, 37, 71, 74, 142, 317, 481, 634, 923, 962, 1846, 2627, 4121, 5254, 8242, 11729, 22507, 23458, 34151, 45014, 68302, 152477, 292591, 304954, 585182, 832759, 1665518, 10825867, 21651734]

約数ペア:

[(1, 21651734), (2, 10825867), (13, 1665518), (26, 832759), (37, 585182), (71, 304954), (74, 292591), (142, 152477), (317, 68302), (481, 45014), (634, 34151), (923, 23458), (962, 22507), (1846, 11729), (2627, 8242), (4121, 5254)]