21130189654

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{65621707}}^1$

素因数の和:65621739

約数の個数: 16

約数和(自身を含む): 37798103808

約数和(自身を除く): 16667914154

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 65621707, 131243414, 459351949, 918703898, 1509299261, 3018598522, 10565094827, 21130189654]

約数ペア:

[(1, 21130189654), (2, 10565094827), (7, 3018598522), (14, 1509299261), (23, 918703898), (46, 459351949), (161, 131243414), (322, 65621707)]