820197

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{277}}^1$

素因数の和:337

約数の個数: 24

約数和(自身を含む): 1387776

約数和(自身を除く): 567579

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 277, 329, 423, 831, 987, 1939, 2493, 2961, 5817, 13019, 17451, 39057, 91133, 117171, 273399, 820197]

約数ペア:

[(1, 820197), (3, 273399), (7, 117171), (9, 91133), (21, 39057), (47, 17451), (63, 13019), (141, 5817), (277, 2961), (329, 2493), (423, 1939), (831, 987)]