20916870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53633}}^1$

素因数の和:53656

約数の個数: 32

約数和(自身を含む): 54063072

約数和(自身を除く): 33146202

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 53633, 107266, 160899, 268165, 321798, 536330, 697229, 804495, 1394458, 1608990, 2091687, 3486145, 4183374, 6972290, 10458435, 20916870]

約数ペア:

[(1, 20916870), (2, 10458435), (3, 6972290), (5, 4183374), (6, 3486145), (10, 2091687), (13, 1608990), (15, 1394458), (26, 804495), (30, 697229), (39, 536330), (65, 321798), (78, 268165), (130, 160899), (195, 107266), (390, 53633)]