28108801

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1$

素因数の和:325

約数の個数: 24

約数和(自身を含む): 34309440

約数和(自身を除く): 6200639

約数列:

[1, 7, 29, 49, 131, 151, 203, 917, 1057, 1421, 3799, 4379, 6419, 7399, 19781, 26593, 30653, 138467, 186151, 214571, 573649, 969269, 4015543, 28108801]

約数ペア:

[(1, 28108801), (7, 4015543), (29, 969269), (49, 573649), (131, 214571), (151, 186151), (203, 138467), (917, 30653), (1057, 26593), (1421, 19781), (3799, 7399), (4379, 6419)]