20811035

素因数分解:

$5^1\times 7^2\times {\mathrm{173}}^1\times {\mathrm{491}}^1$

素因数の和:683

約数の個数: 24

約数和(自身を含む): 29277936

約数和(自身を除く): 8466901

約数列:

[1, 5, 7, 35, 49, 173, 245, 491, 865, 1211, 2455, 3437, 6055, 8477, 17185, 24059, 42385, 84943, 120295, 424715, 594601, 2973005, 4162207, 20811035]

約数ペア:

[(1, 20811035), (5, 4162207), (7, 2973005), (35, 594601), (49, 424715), (173, 120295), (245, 84943), (491, 42385), (865, 24059), (1211, 17185), (2455, 8477), (3437, 6055)]