21722588

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{701}}^1$

素因数の和:893

約数の個数: 24

約数和(自身を含む): 38997504

約数和(自身を除く): 17274916

約数列:

[1, 2, 4, 61, 122, 127, 244, 254, 508, 701, 1402, 2804, 7747, 15494, 30988, 42761, 85522, 89027, 171044, 178054, 356108, 5430647, 10861294, 21722588]

約数ペア:

[(1, 21722588), (2, 10861294), (4, 5430647), (61, 356108), (122, 178054), (127, 171044), (244, 89027), (254, 85522), (508, 42761), (701, 30988), (1402, 15494), (2804, 7747)]