21890502

素因数分解:

$2^1\times 3^2\times {\mathrm{181}}^1\times {\mathrm{6719}}^1$

素因数の和:6908

約数の個数: 24

約数和(自身を含む): 47698560

約数和(自身を除く): 25808058

約数列:

[1, 2, 3, 6, 9, 18, 181, 362, 543, 1086, 1629, 3258, 6719, 13438, 20157, 40314, 60471, 120942, 1216139, 2432278, 3648417, 7296834, 10945251, 21890502]

約数ペア:

[(1, 21890502), (2, 10945251), (3, 7296834), (6, 3648417), (9, 2432278), (18, 1216139), (181, 120942), (362, 60471), (543, 40314), (1086, 20157), (1629, 13438), (3258, 6719)]