20009818

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{4817}}^1$

素因数の和:4917

約数の個数: 16

約数和(自身を含む): 31451904

約数和(自身を除く): 11442086

約数列:

[1, 2, 31, 62, 67, 134, 2077, 4154, 4817, 9634, 149327, 298654, 322739, 645478, 10004909, 20009818]

約数ペア:

[(1, 20009818), (2, 10004909), (31, 645478), (62, 322739), (67, 298654), (134, 149327), (2077, 9634), (4154, 4817)]