19902043

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{367}}^1$

素因数の和:562

約数の個数: 16

約数和(自身を含む): 23363584

約数和(自身を除く): 3461541

約数列:

[1, 7, 61, 127, 367, 427, 889, 2569, 7747, 22387, 46609, 54229, 156709, 326263, 2843149, 19902043]

約数ペア:

[(1, 19902043), (7, 2843149), (61, 326263), (127, 156709), (367, 54229), (427, 46609), (889, 22387), (2569, 7747)]