21069458260

素因数分解:

$2^2\times 5^1\times {\mathrm{853}}^1\times {\mathrm{1235021}}^1$

素因数の和:1235883

約数の個数: 24

約数和(自身を含む): 44297769096

約数和(自身を除く): 23228310836

約数列:

[1, 2, 4, 5, 10, 20, 853, 1706, 3412, 4265, 8530, 17060, 1235021, 2470042, 4940084, 6175105, 12350210, 24700420, 1053472913, 2106945826, 4213891652, 5267364565, 10534729130, 21069458260]

約数ペア:

[(1, 21069458260), (2, 10534729130), (4, 5267364565), (5, 4213891652), (10, 2106945826), (20, 1053472913), (853, 24700420), (1706, 12350210), (3412, 6175105), (4265, 4940084), (8530, 2470042), (17060, 1235021)]