18273969

素因数分解:

$3^2\times 7^1\times {\mathrm{431}}^1\times {\mathrm{673}}^1$

素因数の和:1117

約数の個数: 24

約数和(自身を含む): 30281472

約数和(自身を除く): 12007503

約数列:

[1, 3, 7, 9, 21, 63, 431, 673, 1293, 2019, 3017, 3879, 4711, 6057, 9051, 14133, 27153, 42399, 290063, 870189, 2030441, 2610567, 6091323, 18273969]

約数ペア:

[(1, 18273969), (3, 6091323), (7, 2610567), (9, 2030441), (21, 870189), (63, 290063), (431, 42399), (673, 27153), (1293, 14133), (2019, 9051), (3017, 6057), (3879, 4711)]