20597005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28807}}^1$

素因数の和:28836

約数の個数: 16

約数和(自身を含む): 29038464

約数和(自身を除く): 8441459

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 28807, 144035, 316877, 374491, 1584385, 1872455, 4119401, 20597005]

約数ペア:

[(1, 20597005), (5, 4119401), (11, 1872455), (13, 1584385), (55, 374491), (65, 316877), (143, 144035), (715, 28807)]