20121482451

素因数分解:

$3^1\times 7^2\times {\mathrm{617}}^1\times {\mathrm{221849}}^1$

素因数の和:222483

約数の個数: 24

約数和(自身を含む): 31259552400

約数和(自身を除く): 11138069949

約数列:

[1, 3, 7, 21, 49, 147, 617, 1851, 4319, 12957, 30233, 90699, 221849, 665547, 1552943, 4658829, 10870601, 32611803, 136880833, 410642499, 958165831, 2874497493, 6707160817, 20121482451]

約数ペア:

[(1, 20121482451), (3, 6707160817), (7, 2874497493), (21, 958165831), (49, 410642499), (147, 136880833), (617, 32611803), (1851, 10870601), (4319, 4658829), (12957, 1552943), (30233, 665547), (90699, 221849)]