247391406

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{193577}}^1$

素因数の和:193656

約数の個数: 24

約数和(自身を含む): 543567024

約数和(自身を除く): 296175618

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 193577, 387154, 580731, 1161462, 1742193, 3484386, 13743967, 27487934, 41231901, 82463802, 123695703, 247391406]

約数ペア:

[(1, 247391406), (2, 123695703), (3, 82463802), (6, 41231901), (9, 27487934), (18, 13743967), (71, 3484386), (142, 1742193), (213, 1161462), (426, 580731), (639, 387154), (1278, 193577)]