20121637905

素因数分解:

$3^2\times 5^1\times {\mathrm{1879}}^1\times {\mathrm{237971}}^1$

素因数の和:239861

約数の個数: 24

約数和(自身を含む): 34896214080

約数和(自身を除く): 14774576175

約数列:

[1, 3, 5, 9, 15, 45, 1879, 5637, 9395, 16911, 28185, 84555, 237971, 713913, 1189855, 2141739, 3569565, 10708695, 447147509, 1341442527, 2235737545, 4024327581, 6707212635, 20121637905]

約数ペア:

[(1, 20121637905), (3, 6707212635), (5, 4024327581), (9, 2235737545), (15, 1341442527), (45, 447147509), (1879, 10708695), (5637, 3569565), (9395, 2141739), (16911, 1189855), (28185, 713913), (84555, 237971)]