28642229

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21881}}^1$

素因数の和:21916

約数の個数: 16

約数和(自身を含む): 37812096

約数和(自身を除く): 9169867

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 21881, 153167, 240691, 371977, 1684837, 2603839, 4091747, 28642229]

約数ペア:

[(1, 28642229), (7, 4091747), (11, 2603839), (17, 1684837), (77, 371977), (119, 240691), (187, 153167), (1309, 21881)]