28126815

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{81527}}^1$

素因数の和:81558

約数の個数: 16

約数和(自身を含む): 46960128

約数和(自身を除く): 18833313

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 81527, 244581, 407635, 1222905, 1875121, 5625363, 9375605, 28126815]

約数ペア:

[(1, 28126815), (3, 9375605), (5, 5625363), (15, 1875121), (23, 1222905), (69, 407635), (115, 244581), (345, 81527)]