21471964

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{4027}}^1$

素因数の和:4105

約数の個数: 24

約数和(自身を含む): 39699968

約数和(自身を除く): 18228004

約数列:

[1, 2, 4, 31, 43, 62, 86, 124, 172, 1333, 2666, 4027, 5332, 8054, 16108, 124837, 173161, 249674, 346322, 499348, 692644, 5367991, 10735982, 21471964]

約数ペア:

[(1, 21471964), (2, 10735982), (4, 5367991), (31, 692644), (43, 499348), (62, 346322), (86, 249674), (124, 173161), (172, 124837), (1333, 16108), (2666, 8054), (4027, 5332)]