238291263

素因数分解:

$3^2\times 7^2\times {\mathrm{540343}}^1$

素因数の和:540363

約数の個数: 18

約数和(自身を含む): 400394904

約数和(自身を除く): 162103641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 540343, 1621029, 3782401, 4863087, 11347203, 26476807, 34041609, 79430421, 238291263]

約数ペア:

[(1, 238291263), (3, 79430421), (7, 34041609), (9, 26476807), (21, 11347203), (49, 4863087), (63, 3782401), (147, 1621029), (441, 540343)]