27991805

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1\times {\mathrm{607}}^1$

素因数の和:1036

約数の個数: 16

約数和(自身を含む): 35195904

約数和(自身を除く): 7204099

約数列:

[1, 5, 23, 115, 401, 607, 2005, 3035, 9223, 13961, 46115, 69805, 243407, 1217035, 5598361, 27991805]

約数ペア:

[(1, 27991805), (5, 5598361), (23, 1217035), (115, 243407), (401, 69805), (607, 46115), (2005, 13961), (3035, 9223)]