28539777

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{17203}}^1$

素因数の和:17292

約数の個数: 16

約数和(自身を含む): 44042240

約数和(自身を除く): 15502463

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 17203, 51609, 120421, 361263, 1359037, 4077111, 9513259, 28539777]

約数ペア:

[(1, 28539777), (3, 9513259), (7, 4077111), (21, 1359037), (79, 361263), (237, 120421), (553, 51609), (1659, 17203)]