20688824

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{601}}^1$

素因数の和:951

約数の個数: 32

約数和(自身を含む): 41971440

約数和(自身を除く): 21282616

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 331, 601, 662, 1202, 1324, 2404, 2648, 4303, 4808, 7813, 8606, 15626, 17212, 31252, 34424, 62504, 198931, 397862, 795724, 1591448, 2586103, 5172206, 10344412, 20688824]

約数ペア:

[(1, 20688824), (2, 10344412), (4, 5172206), (8, 2586103), (13, 1591448), (26, 795724), (52, 397862), (104, 198931), (331, 62504), (601, 34424), (662, 31252), (1202, 17212), (1324, 15626), (2404, 8606), (2648, 7813), (4303, 4808)]