21613185

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{929}}^1$

素因数の和:998

約数の個数: 48

約数和(自身を含む): 41783040

約数和(自身を除く): 20169855

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 47, 55, 99, 141, 165, 235, 423, 495, 517, 705, 929, 1551, 2115, 2585, 2787, 4645, 4653, 7755, 8361, 10219, 13935, 23265, 30657, 41805, 43663, 51095, 91971, 130989, 153285, 218315, 392967, 459855, 480293, 654945, 1440879, 1964835, 2401465, 4322637, 7204395, 21613185]

約数ペア:

[(1, 21613185), (3, 7204395), (5, 4322637), (9, 2401465), (11, 1964835), (15, 1440879), (33, 654945), (45, 480293), (47, 459855), (55, 392967), (99, 218315), (141, 153285), (165, 130989), (235, 91971), (423, 51095), (495, 43663), (517, 41805), (705, 30657), (929, 23265), (1551, 13935), (2115, 10219), (2585, 8361), (2787, 7755), (4645, 4653)]