78312493

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1\times {\mathrm{1213}}^1$

素因数の和:1644

約数の個数: 16

約数和(自身を含む): 93701376

約数和(自身を除く): 15388883

約数列:

[1, 7, 23, 161, 401, 1213, 2807, 8491, 9223, 27899, 64561, 195293, 486413, 3404891, 11187499, 78312493]

約数ペア:

[(1, 78312493), (7, 11187499), (23, 3404891), (161, 486413), (401, 195293), (1213, 64561), (2807, 27899), (8491, 9223)]