28104237

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{7561}}^1$

素因数の和:7633

約数の個数: 24

約数和(自身を含む): 47186880

約数和(自身を除く): 19082643

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 1239, 3717, 7561, 22683, 52927, 68049, 158781, 446099, 476343, 1338297, 3122693, 4014891, 9368079, 28104237]

約数ペア:

[(1, 28104237), (3, 9368079), (7, 4014891), (9, 3122693), (21, 1338297), (59, 476343), (63, 446099), (177, 158781), (413, 68049), (531, 52927), (1239, 22683), (3717, 7561)]