20204217

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{18553}}^1$

素因数の和:18581

約数の個数: 18

約数和(自身を含む): 32079866

約数和(自身を除く): 11875649

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 18553, 55659, 166977, 204083, 612249, 1836747, 2244913, 6734739, 20204217]

約数ペア:

[(1, 20204217), (3, 6734739), (9, 2244913), (11, 1836747), (33, 612249), (99, 204083), (121, 166977), (363, 55659), (1089, 18553)]