78471939

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{22111}}^1$

素因数の和:22147

約数の個数: 24

約数和(自身を含む): 129487872

約数和(自身を除く): 51015933

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 1183, 3549, 22111, 66333, 154777, 287443, 464331, 862329, 2012101, 3736759, 6036303, 11210277, 26157313, 78471939]

約数ペア:

[(1, 78471939), (3, 26157313), (7, 11210277), (13, 6036303), (21, 3736759), (39, 2012101), (91, 862329), (169, 464331), (273, 287443), (507, 154777), (1183, 66333), (3549, 22111)]