18877977

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{953}}^1$

素因数の和:1061

約数の個数: 24

約数和(自身を含む): 28574208

約数和(自身を除く): 9696231

約数列:

[1, 3, 9, 31, 71, 93, 213, 279, 639, 953, 2201, 2859, 6603, 8577, 19809, 29543, 67663, 88629, 202989, 265887, 608967, 2097553, 6292659, 18877977]

約数ペア:

[(1, 18877977), (3, 6292659), (9, 2097553), (31, 608967), (71, 265887), (93, 202989), (213, 88629), (279, 67663), (639, 29543), (953, 19809), (2201, 8577), (2859, 6603)]