16690989

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{25639}}^1$

素因数の和:25680

約数の個数: 16

約数和(自身を含む): 26255360

約数和(自身を除く): 9564371

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 25639, 76917, 179473, 538419, 794809, 2384427, 5563663, 16690989]

約数ペア:

[(1, 16690989), (3, 5563663), (7, 2384427), (21, 794809), (31, 538419), (93, 179473), (217, 76917), (651, 25639)]