66243915

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{31321}}^1$

素因数の和:31379

約数の個数: 24

約数和(自身を含む): 117269568

約数和(自身を除く): 51025653

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 31321, 93963, 156605, 281889, 469815, 1409445, 1472087, 4416261, 7360435, 13248783, 22081305, 66243915]

約数ペア:

[(1, 66243915), (3, 22081305), (5, 13248783), (9, 7360435), (15, 4416261), (45, 1472087), (47, 1409445), (141, 469815), (235, 281889), (423, 156605), (705, 93963), (2115, 31321)]