21165776

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{35753}}^1$

素因数の和:35798

約数の個数: 20

約数和(自身を含む): 42118212

約数和(自身を除く): 20952436

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 35753, 71506, 143012, 286024, 572048, 1322861, 2645722, 5291444, 10582888, 21165776]

約数ペア:

[(1, 21165776), (2, 10582888), (4, 5291444), (8, 2645722), (16, 1322861), (37, 572048), (74, 286024), (148, 143012), (296, 71506), (592, 35753)]