21091545

素因数分解:

$3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5647}}^1$

素因数の和:5741

約数の個数: 24

約数和(自身を含む): 37005696

約数和(自身を除く): 15914151

約数列:

[1, 3, 5, 9, 15, 45, 83, 249, 415, 747, 1245, 3735, 5647, 16941, 28235, 50823, 84705, 254115, 468701, 1406103, 2343505, 4218309, 7030515, 21091545]

約数ペア:

[(1, 21091545), (3, 7030515), (5, 4218309), (9, 2343505), (15, 1406103), (45, 468701), (83, 254115), (249, 84705), (415, 50823), (747, 28235), (1245, 16941), (3735, 5647)]