20939254

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{353}}^1$

素因数の和:604

約数の個数: 32

約数和(自身を含む): 38062080

約数和(自身を除く): 17122826

約数列:

[1, 2, 7, 14, 19, 38, 133, 223, 266, 353, 446, 706, 1561, 2471, 3122, 4237, 4942, 6707, 8474, 13414, 29659, 46949, 59318, 78719, 93898, 157438, 551033, 1102066, 1495661, 2991322, 10469627, 20939254]

約数ペア:

[(1, 20939254), (2, 10469627), (7, 2991322), (14, 1495661), (19, 1102066), (38, 551033), (133, 157438), (223, 93898), (266, 78719), (353, 59318), (446, 46949), (706, 29659), (1561, 13414), (2471, 8474), (3122, 6707), (4237, 4942)]