20219485

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28279}}^1$

素因数の和:28308

約数の個数: 16

約数和(自身を含む): 28506240

約数和(自身を除く): 8286755

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 28279, 141395, 311069, 367627, 1555345, 1838135, 4043897, 20219485]

約数ペア:

[(1, 20219485), (5, 4043897), (11, 1838135), (13, 1555345), (55, 367627), (65, 311069), (143, 141395), (715, 28279)]