20156421

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{1213}}^1$

素因数の和:1436

約数の個数: 16

約数和(自身を含む): 27970560

約数和(自身を除く): 7814139

約数列:

[1, 3, 29, 87, 191, 573, 1213, 3639, 5539, 16617, 35177, 105531, 231683, 695049, 6718807, 20156421]

約数ペア:

[(1, 20156421), (3, 6718807), (29, 695049), (87, 231683), (191, 105531), (573, 35177), (1213, 16617), (3639, 5539)]