21758985

素因数分解:

$3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{4519}}^1$

素因数の和:4637

約数の個数: 24

約数和(自身を含む): 38076480

約数和(自身を除く): 16317495

約数列:

[1, 3, 5, 9, 15, 45, 107, 321, 535, 963, 1605, 4519, 4815, 13557, 22595, 40671, 67785, 203355, 483533, 1450599, 2417665, 4351797, 7252995, 21758985]

約数ペア:

[(1, 21758985), (3, 7252995), (5, 4351797), (9, 2417665), (15, 1450599), (45, 483533), (107, 203355), (321, 67785), (535, 40671), (963, 22595), (1605, 13557), (4519, 4815)]