64513281

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{401}}^1$

素因数の和:621

約数の個数: 32

約数和(自身を含む): 101265408

約数和(自身を除く): 36752127

約数列:

[1, 3, 7, 21, 47, 141, 163, 329, 401, 489, 987, 1141, 1203, 2807, 3423, 7661, 8421, 18847, 22983, 53627, 56541, 65363, 131929, 160881, 196089, 395787, 457541, 1372623, 3072061, 9216183, 21504427, 64513281]

約数ペア:

[(1, 64513281), (3, 21504427), (7, 9216183), (21, 3072061), (47, 1372623), (141, 457541), (163, 395787), (329, 196089), (401, 160881), (489, 131929), (987, 65363), (1141, 56541), (1203, 53627), (2807, 22983), (3423, 18847), (7661, 8421)]