28690221

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{44071}}^1$

素因数の和:44112

約数の個数: 16

約数和(自身を含む): 45129728

約数和(自身を除く): 16439507

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 44071, 132213, 308497, 925491, 1366201, 4098603, 9563407, 28690221]

約数ペア:

[(1, 28690221), (3, 9563407), (7, 4098603), (21, 1366201), (31, 925491), (93, 308497), (217, 132213), (651, 44071)]