19915489

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{419}}^1$

素因数の和:608

約数の個数: 16

約数和(自身を含む): 22680000

約数和(自身を除く): 2764511

約数列:

[1, 11, 29, 149, 319, 419, 1639, 4321, 4609, 12151, 47531, 62431, 133661, 686741, 1810499, 19915489]

約数ペア:

[(1, 19915489), (11, 1810499), (29, 686741), (149, 133661), (319, 62431), (419, 47531), (1639, 12151), (4321, 4609)]