21041223

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{3467}}^1$

素因数の和:3511

約数の個数: 24

約数和(自身を含む): 34069632

約数和(自身を除く): 13028409

約数列:

[1, 3, 7, 17, 21, 51, 119, 289, 357, 867, 2023, 3467, 6069, 10401, 24269, 58939, 72807, 176817, 412573, 1001963, 1237719, 3005889, 7013741, 21041223]

約数ペア:

[(1, 21041223), (3, 7013741), (7, 3005889), (17, 1237719), (21, 1001963), (51, 412573), (119, 176817), (289, 72807), (357, 58939), (867, 24269), (2023, 10401), (3467, 6069)]