18356571

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1$

素因数の和:312

約数の個数: 32

約数和(自身を含む): 28286720

約数和(自身を除く): 9930149

約数列:

[1, 3, 9, 27, 43, 97, 129, 163, 291, 387, 489, 873, 1161, 1467, 2619, 4171, 4401, 7009, 12513, 15811, 21027, 37539, 47433, 63081, 112617, 142299, 189243, 426897, 679873, 2039619, 6118857, 18356571]

約数ペア:

[(1, 18356571), (3, 6118857), (9, 2039619), (27, 679873), (43, 426897), (97, 189243), (129, 142299), (163, 112617), (291, 63081), (387, 47433), (489, 37539), (873, 21027), (1161, 15811), (1467, 12513), (2619, 7009), (4171, 4401)]