21248935

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{4759}}^1$

素因数の和:4830

約数の個数: 16

約数和(自身を含む): 27417600

約数和(自身を除く): 6168665

約数列:

[1, 5, 19, 47, 95, 235, 893, 4465, 4759, 23795, 90421, 223673, 452105, 1118365, 4249787, 21248935]

約数ペア:

[(1, 21248935), (5, 4249787), (19, 1118365), (47, 452105), (95, 223673), (235, 90421), (893, 23795), (4465, 4759)]