20070721

素因数分解:

${\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{241}}^1$

素因数の和:432

約数の個数: 16

約数和(自身を含む): 22511808

約数和(自身を除く): 2441087

約数列:

[1, 11, 67, 113, 241, 737, 1243, 2651, 7571, 16147, 27233, 83281, 177617, 299563, 1824611, 20070721]

約数ペア:

[(1, 20070721), (11, 1824611), (67, 299563), (113, 177617), (241, 83281), (737, 27233), (1243, 16147), (2651, 7571)]