28869309

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{5521}}^1$

素因数の和:5617

約数の個数: 24

約数和(自身を含む): 48240192

約数和(自身を除く): 19370883

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 5229, 5521, 16563, 38647, 49689, 115941, 347823, 458243, 1374729, 3207701, 4124187, 9623103, 28869309]

約数ペア:

[(1, 28869309), (3, 9623103), (7, 4124187), (9, 3207701), (21, 1374729), (63, 458243), (83, 347823), (249, 115941), (581, 49689), (747, 38647), (1743, 16563), (5229, 5521)]