21521288

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{44101}}^1$

素因数の和:44168

約数の個数: 16

約数和(自身を含む): 41014860

約数和(自身を除く): 19493572

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 44101, 88202, 176404, 352808, 2690161, 5380322, 10760644, 21521288]

約数ペア:

[(1, 21521288), (2, 10760644), (4, 5380322), (8, 2690161), (61, 352808), (122, 176404), (244, 88202), (488, 44101)]