172976985

素因数分解:

$3^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{9781}}^1$

素因数の和:9926

約数の個数: 32

約数和(自身を含む): 309893760

約数和(自身を除く): 136916775

約数列:

[1, 3, 5, 9, 15, 27, 45, 131, 135, 393, 655, 1179, 1965, 3537, 5895, 9781, 17685, 29343, 48905, 88029, 146715, 264087, 440145, 1281311, 1320435, 3843933, 6406555, 11531799, 19219665, 34595397, 57658995, 172976985]

約数ペア:

[(1, 172976985), (3, 57658995), (5, 34595397), (9, 19219665), (15, 11531799), (27, 6406555), (45, 3843933), (131, 1320435), (135, 1281311), (393, 440145), (655, 264087), (1179, 146715), (1965, 88029), (3537, 48905), (5895, 29343), (9781, 17685)]