19378521

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{4691}}^1$

素因数の和:4723

約数の個数: 24

約数和(自身を含む): 30741984

約数和(自身を除く): 11363463

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 459, 1377, 4131, 4691, 14073, 42219, 79747, 126657, 239241, 379971, 717723, 1139913, 2153169, 6459507, 19378521]

約数ペア:

[(1, 19378521), (3, 6459507), (9, 2153169), (17, 1139913), (27, 717723), (51, 379971), (81, 239241), (153, 126657), (243, 79747), (459, 42219), (1377, 14073), (4131, 4691)]