21496905

素因数分解:

$3^2\times 5^1\times {\mathrm{607}}^1\times {\mathrm{787}}^1$

素因数の和:1405

約数の個数: 24

約数和(自身を含む): 37370112

約数和(自身を除く): 15873207

約数列:

[1, 3, 5, 9, 15, 45, 607, 787, 1821, 2361, 3035, 3935, 5463, 7083, 9105, 11805, 27315, 35415, 477709, 1433127, 2388545, 4299381, 7165635, 21496905]

約数ペア:

[(1, 21496905), (3, 7165635), (5, 4299381), (9, 2388545), (15, 1433127), (45, 477709), (607, 35415), (787, 27315), (1821, 11805), (2361, 9105), (3035, 7083), (3935, 5463)]