12639807

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:265

約数の個数: 40

約数和(自身を含む): 20444160

約数和(自身を除く): 7804353

約数列:

[1, 3, 9, 19, 27, 43, 57, 81, 129, 171, 191, 387, 513, 573, 817, 1161, 1539, 1719, 2451, 3483, 3629, 5157, 7353, 8213, 10887, 15471, 22059, 24639, 32661, 66177, 73917, 97983, 156047, 221751, 293949, 468141, 665253, 1404423, 4213269, 12639807]

約数ペア:

[(1, 12639807), (3, 4213269), (9, 1404423), (19, 665253), (27, 468141), (43, 293949), (57, 221751), (81, 156047), (129, 97983), (171, 73917), (191, 66177), (387, 32661), (513, 24639), (573, 22059), (817, 15471), (1161, 10887), (1539, 8213), (1719, 7353), (2451, 5157), (3483, 3629)]