21374769

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{18899}}^1$

素因数の和:18944

約数の個数: 16

約数和(自身を含む): 31752000

約数和(自身を除く): 10377231

約数列:

[1, 3, 13, 29, 39, 87, 377, 1131, 18899, 56697, 245687, 548071, 737061, 1644213, 7124923, 21374769]

約数ペア:

[(1, 21374769), (3, 7124923), (13, 1644213), (29, 737061), (39, 548071), (87, 245687), (377, 56697), (1131, 18899)]