18319366

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:328

約数の個数: 32

約数和(自身を含む): 30834720

約数和(自身を除く): 12515354

約数列:

[1, 2, 13, 26, 37, 74, 137, 139, 274, 278, 481, 962, 1781, 1807, 3562, 3614, 5069, 5143, 10138, 10286, 19043, 38086, 65897, 66859, 131794, 133718, 247559, 495118, 704591, 1409182, 9159683, 18319366]

約数ペア:

[(1, 18319366), (2, 9159683), (13, 1409182), (26, 704591), (37, 495118), (74, 247559), (137, 133718), (139, 131794), (274, 66859), (278, 65897), (481, 38086), (962, 19043), (1781, 10286), (1807, 10138), (3562, 5143), (3614, 5069)]