21374485

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{569}}^1\times {\mathrm{683}}^1$

素因数の和:1268

約数の個数: 16

約数和(自身を含む): 28071360

約数和(自身を除く): 6696875

約数列:

[1, 5, 11, 55, 569, 683, 2845, 3415, 6259, 7513, 31295, 37565, 388627, 1943135, 4274897, 21374485]

約数ペア:

[(1, 21374485), (5, 4274897), (11, 1943135), (55, 388627), (569, 37565), (683, 31295), (2845, 7513), (3415, 6259)]