12989081

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1$

素因数の和:440

約数の個数: 16

約数和(自身を含む): 15289344

約数和(自身を除く): 2300263

約数列:

[1, 7, 53, 157, 223, 371, 1099, 1561, 8321, 11819, 35011, 58247, 82733, 245077, 1855583, 12989081]

約数ペア:

[(1, 12989081), (7, 1855583), (53, 245077), (157, 82733), (223, 58247), (371, 35011), (1099, 11819), (1561, 8321)]