20681973

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{6547}}^1$

素因数の和:6575

約数の個数: 24

約数和(自身を含む): 33368608

約数和(自身を除く): 12686635

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 1053, 3159, 6547, 19641, 58923, 85111, 176769, 255333, 530307, 765999, 1590921, 2297997, 6893991, 20681973]

約数ペア:

[(1, 20681973), (3, 6893991), (9, 2297997), (13, 1590921), (27, 765999), (39, 530307), (81, 255333), (117, 176769), (243, 85111), (351, 58923), (1053, 19641), (3159, 6547)]