21889016

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{433}}^1$

素因数の和:599

約数の個数: 32

約数和(自身を含む): 42184800

約数和(自身を除く): 20295784

約数列:

[1, 2, 4, 8, 71, 89, 142, 178, 284, 356, 433, 568, 712, 866, 1732, 3464, 6319, 12638, 25276, 30743, 38537, 50552, 61486, 77074, 122972, 154148, 245944, 308296, 2736127, 5472254, 10944508, 21889016]

約数ペア:

[(1, 21889016), (2, 10944508), (4, 5472254), (8, 2736127), (71, 308296), (89, 245944), (142, 154148), (178, 122972), (284, 77074), (356, 61486), (433, 50552), (568, 38537), (712, 30743), (866, 25276), (1732, 12638), (3464, 6319)]