18919478

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{21647}}^1$

素因数の和:21691

約数の個数: 16

約数和(自身を含む): 31173120

約数和(自身を除く): 12253642

約数列:

[1, 2, 19, 23, 38, 46, 437, 874, 21647, 43294, 411293, 497881, 822586, 995762, 9459739, 18919478]

約数ペア:

[(1, 18919478), (2, 9459739), (19, 995762), (23, 822586), (38, 497881), (46, 411293), (437, 43294), (874, 21647)]