20708217

素因数分解:

$3^5\times {\mathrm{31}}^1\times {\mathrm{2749}}^1$

素因数の和:2795

約数の個数: 24

約数和(自身を含む): 32032000

約数和(自身を除く): 11323783

約数列:

[1, 3, 9, 27, 31, 81, 93, 243, 279, 837, 2511, 2749, 7533, 8247, 24741, 74223, 85219, 222669, 255657, 668007, 766971, 2300913, 6902739, 20708217]

約数ペア:

[(1, 20708217), (3, 6902739), (9, 2300913), (27, 766971), (31, 668007), (81, 255657), (93, 222669), (243, 85219), (279, 74223), (837, 24741), (2511, 8247), (2749, 7533)]