28227563

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{107}}^1\times {\mathrm{223}}^1$

素因数の和:363

約数の個数: 24

約数和(自身を含む): 35417088

約数和(自身を除く): 7189525

約数列:

[1, 7, 13, 91, 107, 169, 223, 749, 1183, 1391, 1561, 2899, 9737, 18083, 20293, 23861, 37687, 126581, 167027, 263809, 310193, 2171351, 4032509, 28227563]

約数ペア:

[(1, 28227563), (7, 4032509), (13, 2171351), (91, 310193), (107, 263809), (169, 167027), (223, 126581), (749, 37687), (1183, 23861), (1391, 20293), (1561, 18083), (2899, 9737)]