20902215

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{569}}^1$

素因数の和:687

約数の個数: 32

約数和(自身を含む): 35020800

約数和(自身を除く): 14118585

約数列:

[1, 3, 5, 15, 31, 79, 93, 155, 237, 395, 465, 569, 1185, 1707, 2449, 2845, 7347, 8535, 12245, 17639, 36735, 44951, 52917, 88195, 134853, 224755, 264585, 674265, 1393481, 4180443, 6967405, 20902215]

約数ペア:

[(1, 20902215), (3, 6967405), (5, 4180443), (15, 1393481), (31, 674265), (79, 264585), (93, 224755), (155, 134853), (237, 88195), (395, 52917), (465, 44951), (569, 36735), (1185, 17639), (1707, 12245), (2449, 8535), (2845, 7347)]