28215705

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{268721}}^1$

素因数の和:268736

約数の個数: 16

約数和(自身を含む): 51594624

約数和(自身を除く): 23378919

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 268721, 806163, 1343605, 1881047, 4030815, 5643141, 9405235, 28215705]

約数ペア:

[(1, 28215705), (3, 9405235), (5, 5643141), (7, 4030815), (15, 1881047), (21, 1343605), (35, 806163), (105, 268721)]