21960976

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{22501}}^1$

素因数の和:22570

約数の個数: 20

約数和(自身を含む): 43248844

約数和(自身を除く): 21287868

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 22501, 45002, 90004, 180008, 360016, 1372561, 2745122, 5490244, 10980488, 21960976]

約数ペア:

[(1, 21960976), (2, 10980488), (4, 5490244), (8, 2745122), (16, 1372561), (61, 360016), (122, 180008), (244, 90004), (488, 45002), (976, 22501)]