21986926870

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{200227}}^1$

素因数の和:200452

約数の個数: 32

約数和(自身を含む): 40365964800

約数和(自身を除く): 18379037930

約数列:

[1, 2, 5, 10, 79, 139, 158, 278, 395, 695, 790, 1390, 10981, 21962, 54905, 109810, 200227, 400454, 1001135, 2002270, 15817933, 27831553, 31635866, 55663106, 79089665, 139157765, 158179330, 278315530, 2198692687, 4397385374, 10993463435, 21986926870]

約数ペア:

[(1, 21986926870), (2, 10993463435), (5, 4397385374), (10, 2198692687), (79, 278315530), (139, 158179330), (158, 139157765), (278, 79089665), (395, 55663106), (695, 31635866), (790, 27831553), (1390, 15817933), (10981, 2002270), (21962, 1001135), (54905, 400454), (109810, 200227)]