20919918

素因数分解:

$2^1\times 3^1\times {\mathrm{103}}^1\times {\mathrm{33851}}^1$

素因数の和:33959

約数の個数: 16

約数和(自身を含む): 42247296

約数和(自身を除く): 21327378

約数列:

[1, 2, 3, 6, 103, 206, 309, 618, 33851, 67702, 101553, 203106, 3486653, 6973306, 10459959, 20919918]

約数ペア:

[(1, 20919918), (2, 10459959), (3, 6973306), (6, 3486653), (103, 203106), (206, 101553), (309, 67702), (618, 33851)]