157218003

素因数分解:

$3^4\times {\mathrm{109}}^1\times {\mathrm{17807}}^1$

素因数の和:17928

約数の個数: 20

約数和(自身を含む): 237024480

約数和(自身を除く): 79806477

約数列:

[1, 3, 9, 27, 81, 109, 327, 981, 2943, 8829, 17807, 53421, 160263, 480789, 1442367, 1940963, 5822889, 17468667, 52406001, 157218003]

約数ペア:

[(1, 157218003), (3, 52406001), (9, 17468667), (27, 5822889), (81, 1940963), (109, 1442367), (327, 480789), (981, 160263), (2943, 53421), (8829, 17807)]