12911031

素因数分解:

$3^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{919}}^1$

素因数の和:1155

約数の個数: 24

約数和(自身を含む): 21432320

約数和(自身を除く): 8521289

約数列:

[1, 3, 7, 9, 21, 63, 223, 669, 919, 1561, 2007, 2757, 4683, 6433, 8271, 14049, 19299, 57897, 204937, 614811, 1434559, 1844433, 4303677, 12911031]

約数ペア:

[(1, 12911031), (3, 4303677), (7, 1844433), (9, 1434559), (21, 614811), (63, 204937), (223, 57897), (669, 19299), (919, 14049), (1561, 8271), (2007, 6433), (2757, 4683)]