20181399

素因数分解:

$3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{4021}}^1$

素因数の和:4270

約数の個数: 16

約数和(自身を含む): 30888960

約数和(自身を除く): 10707561

約数列:

[1, 3, 7, 21, 239, 717, 1673, 4021, 5019, 12063, 28147, 84441, 961019, 2883057, 6727133, 20181399]

約数ペア:

[(1, 20181399), (3, 6727133), (7, 2883057), (21, 961019), (239, 84441), (717, 28147), (1673, 12063), (4021, 5019)]