20866258

素因数分解:

$2^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{1429}}^1$

素因数の和:1594

約数の個数: 24

約数和(自身を含む): 36679500

約数和(自身を除く): 15813242

約数列:

[1, 2, 7, 14, 49, 98, 149, 298, 1043, 1429, 2086, 2858, 7301, 10003, 14602, 20006, 70021, 140042, 212921, 425842, 1490447, 2980894, 10433129, 20866258]

約数ペア:

[(1, 20866258), (2, 10433129), (7, 2980894), (14, 1490447), (49, 425842), (98, 212921), (149, 140042), (298, 70021), (1043, 20006), (1429, 14602), (2086, 10003), (2858, 7301)]