28489851

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{18731}}^1$

素因数の和:18763

約数の個数: 18

約数和(自身を含む): 44563428

約数和(自身を除く): 16073577

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 18731, 56193, 168579, 243503, 730509, 2191527, 3165539, 9496617, 28489851]

約数ペア:

[(1, 28489851), (3, 9496617), (9, 3165539), (13, 2191527), (39, 730509), (117, 243503), (169, 168579), (507, 56193), (1521, 18731)]