21465639

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{677}}^1$

素因数の和:967

約数の個数: 24

約数和(自身を含む): 33563712

約数和(自身を除く): 12098073

約数列:

[1, 3, 9, 13, 39, 117, 271, 677, 813, 2031, 2439, 3523, 6093, 8801, 10569, 26403, 31707, 79209, 183467, 550401, 1651203, 2385071, 7155213, 21465639]

約数ペア:

[(1, 21465639), (3, 7155213), (9, 2385071), (13, 1651203), (39, 550401), (117, 183467), (271, 79209), (677, 31707), (813, 26403), (2031, 10569), (2439, 8801), (3523, 6093)]