21954185

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{563}}^1\times {\mathrm{709}}^1$

素因数の和:1288

約数の個数: 16

約数和(自身を含む): 28831680

約数和(自身を除く): 6877495

約数列:

[1, 5, 11, 55, 563, 709, 2815, 3545, 6193, 7799, 30965, 38995, 399167, 1995835, 4390837, 21954185]

約数ペア:

[(1, 21954185), (5, 4390837), (11, 1995835), (55, 399167), (563, 38995), (709, 30965), (2815, 7799), (3545, 6193)]