20928158

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{5347}}^1$

素因数の和:5471

約数の個数: 16

約数和(自身を含む): 33371520

約数和(自身を除く): 12443362

約数列:

[1, 2, 19, 38, 103, 206, 1957, 3914, 5347, 10694, 101593, 203186, 550741, 1101482, 10464079, 20928158]

約数ペア:

[(1, 20928158), (2, 10464079), (19, 1101482), (38, 550741), (103, 203186), (206, 101593), (1957, 10694), (3914, 5347)]