40407813

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{12437}}^1$

素因数の和:12481

約数の個数: 18

約数和(自身を含む): 61605414

約数和(自身を除く): 21197601

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 12437, 37311, 111933, 236303, 708909, 2126727, 4489757, 13469271, 40407813]

約数ペア:

[(1, 40407813), (3, 13469271), (9, 4489757), (19, 2126727), (57, 708909), (171, 236303), (361, 111933), (1083, 37311), (3249, 12437)]