21698019

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{18127}}^1$

素因数の和:18159

約数の個数: 24

約数和(自身を含む): 37706240

約数和(自身を除く): 16008221

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 18127, 54381, 126889, 163143, 344413, 380667, 1033239, 1142001, 2410891, 3099717, 7232673, 21698019]

約数ペア:

[(1, 21698019), (3, 7232673), (7, 3099717), (9, 2410891), (19, 1142001), (21, 1033239), (57, 380667), (63, 344413), (133, 163143), (171, 126889), (399, 54381), (1197, 18127)]