28354193

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:357

約数の個数: 24

約数和(自身を含む): 34856640

約数和(自身を除く): 6502447

約数列:

[1, 7, 23, 49, 139, 161, 181, 973, 1127, 1267, 3197, 4163, 6811, 8869, 22379, 25159, 29141, 156653, 176113, 203987, 578657, 1232791, 4050599, 28354193]

約数ペア:

[(1, 28354193), (7, 4050599), (23, 1232791), (49, 578657), (139, 203987), (161, 176113), (181, 156653), (973, 29141), (1127, 25159), (1267, 22379), (3197, 8869), (4163, 6811)]