21719545

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{1049}}^1$

素因数の和:1196

約数の個数: 16

約数和(自身を含む): 26989200

約数和(自身を除く): 5269655

約数列:

[1, 5, 41, 101, 205, 505, 1049, 4141, 5245, 20705, 43009, 105949, 215045, 529745, 4343909, 21719545]

約数ペア:

[(1, 21719545), (5, 4343909), (41, 529745), (101, 215045), (205, 105949), (505, 43009), (1049, 20705), (4141, 5245)]