28852817

素因数分解:

$7^4\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:286

約数の個数: 20

約数和(自身を含む): 34385076

約数和(自身を除く): 5532259

約数列:

[1, 7, 49, 61, 197, 343, 427, 1379, 2401, 2989, 9653, 12017, 20923, 67571, 84119, 146461, 472997, 588833, 4121831, 28852817]

約数ペア:

[(1, 28852817), (7, 4121831), (49, 588833), (61, 472997), (197, 146461), (343, 84119), (427, 67571), (1379, 20923), (2401, 12017), (2989, 9653)]