18188355

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{173}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 30134016

約数和(自身を除く): 11945661

約数列:

[1, 3, 5, 15, 43, 129, 163, 173, 215, 489, 519, 645, 815, 865, 2445, 2595, 7009, 7439, 21027, 22317, 28199, 35045, 37195, 84597, 105135, 111585, 140995, 422985, 1212557, 3637671, 6062785, 18188355]

約数ペア:

[(1, 18188355), (3, 6062785), (5, 3637671), (15, 1212557), (43, 422985), (129, 140995), (163, 111585), (173, 105135), (215, 84597), (489, 37195), (519, 35045), (645, 28199), (815, 22317), (865, 21027), (2445, 7439), (2595, 7009)]