21115068

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{135353}}^1$

素因数の和:135373

約数の個数: 24

約数和(自身を含む): 53058768

約数和(自身を除く): 31943700

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 135353, 270706, 406059, 541412, 812118, 1624236, 1759589, 3519178, 5278767, 7038356, 10557534, 21115068]

約数ペア:

[(1, 21115068), (2, 10557534), (3, 7038356), (4, 5278767), (6, 3519178), (12, 1759589), (13, 1624236), (26, 812118), (39, 541412), (52, 406059), (78, 270706), (156, 135353)]