20865902

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{5431}}^1$

素因数の和:5563

約数の個数: 16

約数和(自身を含む): 33439392

約数和(自身を除く): 12573490

約数列:

[1, 2, 17, 34, 113, 226, 1921, 3842, 5431, 10862, 92327, 184654, 613703, 1227406, 10432951, 20865902]

約数ペア:

[(1, 20865902), (2, 10432951), (17, 1227406), (34, 613703), (113, 184654), (226, 92327), (1921, 10862), (3842, 5431)]