1617821181

素因数分解:

$3^4\times {\mathrm{719}}^1\times {\mathrm{27779}}^1$

素因数の和:28510

約数の個数: 20

約数和(自身を含む): 2420193600

約数和(自身を除く): 802372419

約数列:

[1, 3, 9, 27, 81, 719, 2157, 6471, 19413, 27779, 58239, 83337, 250011, 750033, 2250099, 19973101, 59919303, 179757909, 539273727, 1617821181]

約数ペア:

[(1, 1617821181), (3, 539273727), (9, 179757909), (27, 59919303), (81, 19973101), (719, 2250099), (2157, 750033), (6471, 250011), (19413, 83337), (27779, 58239)]