19564195

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 28740096

約数和(自身を除く): 9175901

約数列:

[1, 5, 7, 17, 35, 85, 119, 131, 251, 595, 655, 917, 1255, 1757, 2227, 4267, 4585, 8785, 11135, 15589, 21335, 29869, 32881, 77945, 149345, 164405, 230167, 558977, 1150835, 2794885, 3912839, 19564195]

約数ペア:

[(1, 19564195), (5, 3912839), (7, 2794885), (17, 1150835), (35, 558977), (85, 230167), (119, 164405), (131, 149345), (251, 77945), (595, 32881), (655, 29869), (917, 21335), (1255, 15589), (1757, 11135), (2227, 8785), (4267, 4585)]