19961968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{95971}}^1$

素因数の和:95992

約数の個数: 20

約数和(自身を含む): 41651848

約数和(自身を除く): 21689880

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 95971, 191942, 383884, 767768, 1247623, 1535536, 2495246, 4990492, 9980984, 19961968]

約数ペア:

[(1, 19961968), (2, 9980984), (4, 4990492), (8, 2495246), (13, 1535536), (16, 1247623), (26, 767768), (52, 383884), (104, 191942), (208, 95971)]