21356426

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{433}}^1$

素因数の和:726

約数の個数: 32

約数和(自身を含む): 39664128

約数和(自身を除く): 18307702

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 271, 433, 542, 866, 1897, 3031, 3523, 3794, 5629, 6062, 7046, 11258, 24661, 39403, 49322, 78806, 117343, 234686, 821401, 1525459, 1642802, 3050918, 10678213, 21356426]

約数ペア:

[(1, 21356426), (2, 10678213), (7, 3050918), (13, 1642802), (14, 1525459), (26, 821401), (91, 234686), (182, 117343), (271, 78806), (433, 49322), (542, 39403), (866, 24661), (1897, 11258), (3031, 7046), (3523, 6062), (3794, 5629)]