21055795201

素因数分解:

$7^1\times {\mathrm{127}}^1\times {\mathrm{601}}^1\times {\mathrm{39409}}^1$

素因数の和:40144

約数の個数: 16

約数和(自身を含む): 24294215680

約数和(自身を除く): 3238420479

約数列:

[1, 7, 127, 601, 889, 4207, 39409, 76327, 275863, 534289, 5004943, 23684809, 35034601, 165793663, 3007970743, 21055795201]

約数ペア:

[(1, 21055795201), (7, 3007970743), (127, 165793663), (601, 35034601), (889, 23684809), (4207, 5004943), (39409, 534289), (76327, 275863)]