20905016

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12503}}^1$

素因数の和:12539

約数の個数: 32

約数和(自身を含む): 45014400

約数和(自身を除く): 24109384

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 12503, 25006, 50012, 100024, 137533, 237557, 275066, 475114, 550132, 950228, 1100264, 1900456, 2613127, 5226254, 10452508, 20905016]

約数ペア:

[(1, 20905016), (2, 10452508), (4, 5226254), (8, 2613127), (11, 1900456), (19, 1100264), (22, 950228), (38, 550132), (44, 475114), (76, 275066), (88, 237557), (152, 137533), (209, 100024), (418, 50012), (836, 25006), (1672, 12503)]