18639426

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{238967}}^1$

素因数の和:238985

約数の個数: 16

約数和(自身を含む): 40146624

約数和(自身を除く): 21507198

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 238967, 477934, 716901, 1433802, 3106571, 6213142, 9319713, 18639426]

約数ペア:

[(1, 18639426), (2, 9319713), (3, 6213142), (6, 3106571), (13, 1433802), (26, 716901), (39, 477934), (78, 238967)]