13889395

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:223

約数の個数: 32

約数和(自身を含む): 18998784

約数和(自身を除く): 5109389

約数列:

[1, 5, 13, 31, 61, 65, 113, 155, 305, 403, 565, 793, 1469, 1891, 2015, 3503, 3965, 6893, 7345, 9455, 17515, 24583, 34465, 45539, 89609, 122915, 213683, 227695, 448045, 1068415, 2777879, 13889395]

約数ペア:

[(1, 13889395), (5, 2777879), (13, 1068415), (31, 448045), (61, 227695), (65, 213683), (113, 122915), (155, 89609), (305, 45539), (403, 34465), (565, 24583), (793, 17515), (1469, 9455), (1891, 7345), (2015, 6893), (3503, 3965)]