21452504

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{157739}}^1$

素因数の和:157762

約数の個数: 16

約数和(自身を含む): 42589800

約数和(自身を除く): 21137296

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 157739, 315478, 630956, 1261912, 2681563, 5363126, 10726252, 21452504]

約数ペア:

[(1, 21452504), (2, 10726252), (4, 5363126), (8, 2681563), (17, 1261912), (34, 630956), (68, 315478), (136, 157739)]