21715263

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{21737}}^1$

素因数の和:21783

約数の個数: 16

約数和(自身を含む): 33041760

約数和(自身を除く): 11326497

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 21737, 65211, 195633, 586899, 804269, 2412807, 7238421, 21715263]

約数ペア:

[(1, 21715263), (3, 7238421), (9, 2412807), (27, 804269), (37, 586899), (111, 195633), (333, 65211), (999, 21737)]