2021691245

素因数分解:

$5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{81701}}^1$

素因数の和:81821

約数の個数: 24

約数和(自身を含む): 2850092568

約数和(自身を除く): 828401323

約数列:

[1, 5, 7, 35, 49, 101, 245, 505, 707, 3535, 4949, 24745, 81701, 408505, 571907, 2859535, 4003349, 8251801, 20016745, 41259005, 57762607, 288813035, 404338249, 2021691245]

約数ペア:

[(1, 2021691245), (5, 404338249), (7, 288813035), (35, 57762607), (49, 41259005), (101, 20016745), (245, 8251801), (505, 4003349), (707, 2859535), (3535, 571907), (4949, 408505), (24745, 81701)]