21710845

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{1583}}^1$

素因数の和:1812

約数の個数: 16

約数和(自身を含む): 28207872

約数和(自身を除く): 6497027

約数列:

[1, 5, 13, 65, 211, 1055, 1583, 2743, 7915, 13715, 20579, 102895, 334013, 1670065, 4342169, 21710845]

約数ペア:

[(1, 21710845), (5, 4342169), (13, 1670065), (65, 334013), (211, 102895), (1055, 20579), (1583, 13715), (2743, 7915)]