18718206

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{239977}}^1$

素因数の和:239995

約数の個数: 16

約数和(自身を含む): 40316304

約数和(自身を除く): 21598098

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 239977, 479954, 719931, 1439862, 3119701, 6239402, 9359103, 18718206]

約数ペア:

[(1, 18718206), (2, 9359103), (3, 6239402), (6, 3119701), (13, 1439862), (26, 719931), (39, 479954), (78, 239977)]