21964912

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{72253}}^1$

素因数の和:72280

約数の個数: 20

約数和(自身を含む): 44797480

約数和(自身を除く): 22832568

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 72253, 144506, 289012, 578024, 1156048, 1372807, 2745614, 5491228, 10982456, 21964912]

約数ペア:

[(1, 21964912), (2, 10982456), (4, 5491228), (8, 2745614), (16, 1372807), (19, 1156048), (38, 578024), (76, 289012), (152, 144506), (304, 72253)]