21000708

素因数分解:

$2^2\times 3^4\times {\mathrm{64817}}^1$

素因数の和:64833

約数の個数: 30

約数和(自身を含む): 54900846

約数和(自身を除く): 33900138

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 64817, 129634, 194451, 259268, 388902, 583353, 777804, 1166706, 1750059, 2333412, 3500118, 5250177, 7000236, 10500354, 21000708]

約数ペア:

[(1, 21000708), (2, 10500354), (3, 7000236), (4, 5250177), (6, 3500118), (9, 2333412), (12, 1750059), (18, 1166706), (27, 777804), (36, 583353), (54, 388902), (81, 259268), (108, 194451), (162, 129634), (324, 64817)]