128773749

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{431}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 190439424

約数和(自身を除く): 61665675

約数列:

[1, 3, 13, 39, 47, 141, 163, 431, 489, 611, 1293, 1833, 2119, 5603, 6357, 7661, 16809, 20257, 22983, 60771, 70253, 99593, 210759, 263341, 298779, 790023, 913289, 2739867, 3301891, 9905673, 42924583, 128773749]

約数ペア:

[(1, 128773749), (3, 42924583), (13, 9905673), (39, 3301891), (47, 2739867), (141, 913289), (163, 790023), (431, 298779), (489, 263341), (611, 210759), (1293, 99593), (1833, 70253), (2119, 60771), (5603, 22983), (6357, 20257), (7661, 16809)]