12378921

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{653}}^1$

素因数の和:816

約数の個数: 16

約数和(自身を含む): 16951680

約数和(自身を除く): 4572759

約数列:

[1, 3, 71, 89, 213, 267, 653, 1959, 6319, 18957, 46363, 58117, 139089, 174351, 4126307, 12378921]

約数ペア:

[(1, 12378921), (3, 4126307), (71, 174351), (89, 139089), (213, 58117), (267, 46363), (653, 18957), (1959, 6319)]