20179242531

素因数分解:

$3^4\times 7^1\times {\mathrm{281}}^1\times {\mathrm{126653}}^1$

素因数の和:126953

約数の個数: 40

約数和(自身を含む): 34573502304

約数和(自身を除く): 14394259773

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 281, 567, 843, 1967, 2529, 5901, 7587, 17703, 22761, 53109, 126653, 159327, 379959, 886571, 1139877, 2659713, 3419631, 7979139, 10258893, 23937417, 35589493, 71812251, 106768479, 249126451, 320305437, 747379353, 960916311, 2242138059, 2882748933, 6726414177, 20179242531]

約数ペア:

[(1, 20179242531), (3, 6726414177), (7, 2882748933), (9, 2242138059), (21, 960916311), (27, 747379353), (63, 320305437), (81, 249126451), (189, 106768479), (281, 71812251), (567, 35589493), (843, 23937417), (1967, 10258893), (2529, 7979139), (5901, 3419631), (7587, 2659713), (17703, 1139877), (22761, 886571), (53109, 379959), (126653, 159327)]