20871631

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{467}}^1$

素因数の和:734

約数の個数: 16

約数和(自身を含む): 24261120

約数和(自身を除く): 3389489

約数列:

[1, 11, 17, 187, 239, 467, 2629, 4063, 5137, 7939, 44693, 87329, 111613, 1227743, 1897421, 20871631]

約数ペア:

[(1, 20871631), (11, 1897421), (17, 1227743), (187, 111613), (239, 87329), (467, 44693), (2629, 7939), (4063, 5137)]