21567971

素因数分解:

${\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:322

約数の個数: 16

約数和(自身を含む): 23113728

約数和(自身を除く): 1545757

約数列:

[1, 31, 47, 113, 131, 1457, 3503, 4061, 5311, 6157, 14803, 164641, 190867, 458893, 695741, 21567971]

約数ペア:

[(1, 21567971), (31, 695741), (47, 458893), (113, 190867), (131, 164641), (1457, 14803), (3503, 6157), (4061, 5311)]