18102805

素因数分解:

$5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1997}}^1$

素因数の和:2053

約数の個数: 24

約数和(自身を含む): 25966008

約数和(自身を除く): 7863203

約数列:

[1, 5, 7, 35, 37, 49, 185, 245, 259, 1295, 1813, 1997, 9065, 9985, 13979, 69895, 73889, 97853, 369445, 489265, 517223, 2586115, 3620561, 18102805]

約数ペア:

[(1, 18102805), (5, 3620561), (7, 2586115), (35, 517223), (37, 489265), (49, 369445), (185, 97853), (245, 73889), (259, 69895), (1295, 13979), (1813, 9985), (1997, 9065)]