28204547

素因数分解:

$7^4\times {\mathrm{17}}^1\times {\mathrm{691}}^1$

素因数の和:736

約数の個数: 20

約数和(自身を含む): 34889256

約数和(自身を除く): 6684709

約数列:

[1, 7, 17, 49, 119, 343, 691, 833, 2401, 4837, 5831, 11747, 33859, 40817, 82229, 237013, 575603, 1659091, 4029221, 28204547]

約数ペア:

[(1, 28204547), (7, 4029221), (17, 1659091), (49, 575603), (119, 237013), (343, 82229), (691, 40817), (833, 33859), (2401, 11747), (4837, 5831)]