20181378501

素因数分解:

$3^4\times {\mathrm{359}}^1\times {\mathrm{694019}}^1$

素因数の和:694390

約数の個数: 20

約数和(自身を含む): 30231511200

約数和(自身を除く): 10050132699

約数列:

[1, 3, 9, 27, 81, 359, 1077, 3231, 9693, 29079, 694019, 2082057, 6246171, 18738513, 56215539, 249152821, 747458463, 2242375389, 6727126167, 20181378501]

約数ペア:

[(1, 20181378501), (3, 6727126167), (9, 2242375389), (27, 747458463), (81, 249152821), (359, 56215539), (1077, 18738513), (3231, 6246171), (9693, 2082057), (29079, 694019)]