20190989

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1093}}^1$

素因数の和:1149

約数の個数: 24

約数和(自身を含む): 26190360

約数和(自身を除く): 5999371

約数列:

[1, 7, 13, 29, 49, 91, 203, 377, 637, 1093, 1421, 2639, 7651, 14209, 18473, 31697, 53557, 99463, 221879, 412061, 696241, 1553153, 2884427, 20190989]

約数ペア:

[(1, 20190989), (7, 2884427), (13, 1553153), (29, 696241), (49, 412061), (91, 221879), (203, 99463), (377, 53557), (637, 31697), (1093, 18473), (1421, 14209), (2639, 7651)]