19857968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{95471}}^1$

素因数の和:95492

約数の個数: 20

約数和(自身を含む): 41434848

約数和(自身を除く): 21576880

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 95471, 190942, 381884, 763768, 1241123, 1527536, 2482246, 4964492, 9928984, 19857968]

約数ペア:

[(1, 19857968), (2, 9928984), (4, 4964492), (8, 2482246), (13, 1527536), (16, 1241123), (26, 763768), (52, 381884), (104, 190942), (208, 95471)]