123457779

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{442501}}^1$

素因数の和:442538

約数の個数: 12

約数和(自身を含む): 184080832

約数和(自身を除く): 60623053

約数列:

[1, 3, 9, 31, 93, 279, 442501, 1327503, 3982509, 13717531, 41152593, 123457779]

約数ペア:

[(1, 123457779), (3, 41152593), (9, 13717531), (31, 3982509), (93, 1327503), (279, 442501)]