19966522

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1\times {\mathrm{839}}^1$

素因数の和:1077

約数の個数: 16

約数和(自身を含む): 30582720

約数和(自身を除く): 10616198

約数列:

[1, 2, 73, 146, 163, 326, 839, 1678, 11899, 23798, 61247, 122494, 136757, 273514, 9983261, 19966522]

約数ペア:

[(1, 19966522), (2, 9983261), (73, 273514), (146, 136757), (163, 122494), (326, 61247), (839, 23798), (1678, 11899)]