247486617

素因数分解:

$3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{18443}}^1$

素因数の和:18530

約数の個数: 32

約数和(自身を含む): 424949760

約数和(自身を除く): 177463143

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 189, 213, 497, 639, 1491, 1917, 4473, 13419, 18443, 55329, 129101, 165987, 387303, 497961, 1161909, 1309453, 3485727, 3928359, 9166171, 11785077, 27498513, 35355231, 82495539, 247486617]

約数ペア:

[(1, 247486617), (3, 82495539), (7, 35355231), (9, 27498513), (21, 11785077), (27, 9166171), (63, 3928359), (71, 3485727), (189, 1309453), (213, 1161909), (497, 497961), (639, 387303), (1491, 165987), (1917, 129101), (4473, 55329), (13419, 18443)]