20540842

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{229}}^1$

素因数の和:430

約数の個数: 32

約数和(自身を含む): 36432000

約数和(自身を除く): 15891158

約数列:

[1, 2, 7, 14, 43, 86, 149, 229, 298, 301, 458, 602, 1043, 1603, 2086, 3206, 6407, 9847, 12814, 19694, 34121, 44849, 68242, 68929, 89698, 137858, 238847, 477694, 1467203, 2934406, 10270421, 20540842]

約数ペア:

[(1, 20540842), (2, 10270421), (7, 2934406), (14, 1467203), (43, 477694), (86, 238847), (149, 137858), (229, 89698), (298, 68929), (301, 68242), (458, 44849), (602, 34121), (1043, 19694), (1603, 12814), (2086, 9847), (3206, 6407)]