664458431

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{1901}}^1$

素因数の和:2111

約数の個数: 32

約数和(自身を含む): 858912768

約数和(自身を除く): 194454337

約数列:

[1, 7, 13, 23, 91, 161, 167, 299, 1169, 1901, 2093, 2171, 3841, 13307, 15197, 24713, 26887, 43723, 49933, 172991, 306061, 317467, 349531, 568399, 2222269, 3978793, 4127071, 7301741, 28889497, 51112187, 94922633, 664458431]

約数ペア:

[(1, 664458431), (7, 94922633), (13, 51112187), (23, 28889497), (91, 7301741), (161, 4127071), (167, 3978793), (299, 2222269), (1169, 568399), (1901, 349531), (2093, 317467), (2171, 306061), (3841, 172991), (13307, 49933), (15197, 43723), (24713, 26887)]