28171927

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{1109}}^1$

素因数の和:1326

約数の個数: 16

約数和(自身を含む): 34099200

約数和(自身を除く): 5927273

約数列:

[1, 7, 19, 133, 191, 1109, 1337, 3629, 7763, 21071, 25403, 147497, 211819, 1482733, 4024561, 28171927]

約数ペア:

[(1, 28171927), (7, 4024561), (19, 1482733), (133, 211819), (191, 147497), (1109, 25403), (1337, 21071), (3629, 7763)]