21000391670

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2707}}^1\times {\mathrm{7681}}^1$

素因数の和:10496

約数の個数: 32

約数和(自身を含む): 38194043616

約数和(自身を除く): 17193651946

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 2707, 5414, 7681, 13535, 15362, 27070, 38405, 76810, 273407, 546814, 775781, 1367035, 1551562, 2734070, 3878905, 7757810, 20792467, 41584934, 103962335, 207924670, 2100039167, 4200078334, 10500195835, 21000391670]

約数ペア:

[(1, 21000391670), (2, 10500195835), (5, 4200078334), (10, 2100039167), (101, 207924670), (202, 103962335), (505, 41584934), (1010, 20792467), (2707, 7757810), (5414, 3878905), (7681, 2734070), (13535, 1551562), (15362, 1367035), (27070, 775781), (38405, 546814), (76810, 273407)]