20781354

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{499}}^1\times {\mathrm{631}}^1$

素因数の和:1146

約数の個数: 32

約数和(自身を含む): 45504000

約数和(自身を除く): 24722646

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 499, 631, 998, 1262, 1497, 1893, 2994, 3786, 5489, 6941, 10978, 13882, 16467, 20823, 32934, 41646, 314869, 629738, 944607, 1889214, 3463559, 6927118, 10390677, 20781354]

約数ペア:

[(1, 20781354), (2, 10390677), (3, 6927118), (6, 3463559), (11, 1889214), (22, 944607), (33, 629738), (66, 314869), (499, 41646), (631, 32934), (998, 20823), (1262, 16467), (1497, 13882), (1893, 10978), (2994, 6941), (3786, 5489)]