18903263

素因数分解:

${\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{229}}^1$

素因数の和:386

約数の個数: 16

約数和(自身を含む): 20556480

約数和(自身を除く): 1653217

約数列:

[1, 23, 37, 97, 229, 851, 2231, 3589, 5267, 8473, 22213, 82547, 194879, 510899, 821881, 18903263]

約数ペア:

[(1, 18903263), (23, 821881), (37, 510899), (97, 194879), (229, 82547), (851, 22213), (2231, 8473), (3589, 5267)]