18981705

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{29429}}^1$

素因数の和:29480

約数の個数: 16

約数和(自身を含む): 31078080

約数和(自身を除く): 12096375

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 29429, 88287, 147145, 441435, 1265447, 3796341, 6327235, 18981705]

約数ペア:

[(1, 18981705), (3, 6327235), (5, 3796341), (15, 1265447), (43, 441435), (129, 147145), (215, 88287), (645, 29429)]