20010285

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6263}}^1$

素因数の和:6345

約数の個数: 24

約数和(自身を含む): 35178624

約数和(自身を除く): 15168339

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 6263, 18789, 31315, 56367, 93945, 281835, 444673, 1334019, 2223365, 4002057, 6670095, 20010285]

約数ペア:

[(1, 20010285), (3, 6670095), (5, 4002057), (9, 2223365), (15, 1334019), (45, 444673), (71, 281835), (213, 93945), (355, 56367), (639, 31315), (1065, 18789), (3195, 6263)]