20274121

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:229

約数の個数: 24

約数和(自身を含む): 25017984

約数和(自身を除く): 4743863

約数列:

[1, 7, 19, 71, 113, 133, 361, 497, 791, 1349, 2147, 2527, 8023, 9443, 15029, 25631, 40793, 56161, 152437, 179417, 285551, 1067059, 2896303, 20274121]

約数ペア:

[(1, 20274121), (7, 2896303), (19, 1067059), (71, 285551), (113, 179417), (133, 152437), (361, 56161), (497, 40793), (791, 25631), (1349, 15029), (2147, 9443), (2527, 8023)]