21521776

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{22051}}^1$

素因数の和:22120

約数の個数: 20

約数和(自身を含む): 42383944

約数和(自身を除く): 20862168

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 22051, 44102, 88204, 176408, 352816, 1345111, 2690222, 5380444, 10760888, 21521776]

約数ペア:

[(1, 21521776), (2, 10760888), (4, 5380444), (8, 2690222), (16, 1345111), (61, 352816), (122, 176408), (244, 88204), (488, 44102), (976, 22051)]