21635271

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{20201}}^1$

素因数の和:20231

約数の個数: 24

約数和(自身を含む): 37818144

約数和(自身を除く): 16182873

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 20201, 60603, 141407, 181809, 343417, 424221, 1030251, 1272663, 2403919, 3090753, 7211757, 21635271]

約数ペア:

[(1, 21635271), (3, 7211757), (7, 3090753), (9, 2403919), (17, 1272663), (21, 1030251), (51, 424221), (63, 343417), (119, 181809), (153, 141407), (357, 60603), (1071, 20201)]