20021053

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{73}}^2$

素因数の和:193

約数の個数: 18

約数和(自身を含む): 23222094

約数和(自身を除く): 3201041

約数列:

[1, 13, 17, 73, 221, 289, 949, 1241, 3757, 5329, 16133, 21097, 69277, 90593, 274261, 1177709, 1540081, 20021053]

約数ペア:

[(1, 20021053), (13, 1540081), (17, 1177709), (73, 274261), (221, 90593), (289, 69277), (949, 21097), (1241, 16133), (3757, 5329)]