18704355

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{617}}^1$

素因数の和:715

約数の個数: 32

約数和(自身を含む): 31325184

約数和(自身を除く): 12620829

約数列:

[1, 3, 5, 15, 43, 47, 129, 141, 215, 235, 617, 645, 705, 1851, 2021, 3085, 6063, 9255, 10105, 26531, 28999, 30315, 79593, 86997, 132655, 144995, 397965, 434985, 1246957, 3740871, 6234785, 18704355]

約数ペア:

[(1, 18704355), (3, 6234785), (5, 3740871), (15, 1246957), (43, 434985), (47, 397965), (129, 144995), (141, 132655), (215, 86997), (235, 79593), (617, 30315), (645, 28999), (705, 26531), (1851, 10105), (2021, 9255), (3085, 6063)]