20179791

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{479}}^1$

素因数の和:667

約数の個数: 24

約数和(自身を含む): 30351360

約数和(自身を除く): 10171569

約数列:

[1, 3, 9, 31, 93, 151, 279, 453, 479, 1359, 1437, 4311, 4681, 14043, 14849, 42129, 44547, 72329, 133641, 216987, 650961, 2242199, 6726597, 20179791]

約数ペア:

[(1, 20179791), (3, 6726597), (9, 2242199), (31, 650961), (93, 216987), (151, 133641), (279, 72329), (453, 44547), (479, 42129), (1359, 14849), (1437, 14043), (4311, 4681)]