18195527

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{431}}^1$

素因数の和:638

約数の個数: 16

約数和(自身を含む): 21537792

約数和(自身を除く): 3342265

約数列:

[1, 7, 37, 163, 259, 431, 1141, 3017, 6031, 15947, 42217, 70253, 111629, 491771, 2599361, 18195527]

約数ペア:

[(1, 18195527), (7, 2599361), (37, 491771), (163, 111629), (259, 70253), (431, 42217), (1141, 15947), (3017, 6031)]