20039679

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2851}}^1$

素因数の和:2939

約数の個数: 24

約数和(自身を含む): 32033664

約数和(自身を除く): 11993985

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 2851, 7029, 8553, 25659, 31361, 94083, 202421, 282249, 607263, 1821789, 2226631, 6679893, 20039679]

約数ペア:

[(1, 20039679), (3, 6679893), (9, 2226631), (11, 1821789), (33, 607263), (71, 282249), (99, 202421), (213, 94083), (639, 31361), (781, 25659), (2343, 8553), (2851, 7029)]