21698397

素因数分解:

$3^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{2113}}^1$

素因数の和:2289

約数の個数: 24

約数和(自身を含む): 36056384

約数和(自身を除く): 14357987

約数列:

[1, 3, 7, 9, 21, 63, 163, 489, 1141, 1467, 2113, 3423, 6339, 10269, 14791, 19017, 44373, 133119, 344419, 1033257, 2410933, 3099771, 7232799, 21698397]

約数ペア:

[(1, 21698397), (3, 7232799), (7, 3099771), (9, 2410933), (21, 1033257), (63, 344419), (163, 133119), (489, 44373), (1141, 19017), (1467, 14791), (2113, 10269), (3423, 6339)]