21031608

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67409}}^1$

素因数の和:67431

約数の個数: 32

約数和(自身を含む): 56624400

約数和(自身を除く): 35592792

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 67409, 134818, 202227, 269636, 404454, 539272, 808908, 876317, 1617816, 1752634, 2628951, 3505268, 5257902, 7010536, 10515804, 21031608]

約数ペア:

[(1, 21031608), (2, 10515804), (3, 7010536), (4, 5257902), (6, 3505268), (8, 2628951), (12, 1752634), (13, 1617816), (24, 876317), (26, 808908), (39, 539272), (52, 404454), (78, 269636), (104, 202227), (156, 134818), (312, 67409)]