30981769

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2861}}^1$

素因数の和:2905

約数の個数: 24

約数和(自身を含む): 41109768

約数和(自身を除く): 10127999

約数列:

[1, 7, 13, 17, 49, 91, 119, 221, 637, 833, 1547, 2861, 10829, 20027, 37193, 48637, 140189, 260351, 340459, 632281, 1822457, 2383213, 4425967, 30981769]

約数ペア:

[(1, 30981769), (7, 4425967), (13, 2383213), (17, 1822457), (49, 632281), (91, 340459), (119, 260351), (221, 140189), (637, 48637), (833, 37193), (1547, 20027), (2861, 10829)]