20591738139

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{7054381}}^1$

素因数の和:7054530

約数の個数: 16

約数和(自身を含む): 31603631360

約数和(自身を除く): 11011893221

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 7054381, 21163143, 49380667, 148142001, 980558959, 2941676877, 6863912713, 20591738139]

約数ペア:

[(1, 20591738139), (3, 6863912713), (7, 2941676877), (21, 980558959), (139, 148142001), (417, 49380667), (973, 21163143), (2919, 7054381)]