20810193

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 31124736

約数和(自身を除く): 10314543

約数列:

[1, 3, 17, 23, 51, 69, 113, 157, 339, 391, 471, 1173, 1921, 2599, 2669, 3611, 5763, 7797, 8007, 10833, 17741, 44183, 53223, 61387, 132549, 184161, 301597, 408043, 904791, 1224129, 6936731, 20810193]

約数ペア:

[(1, 20810193), (3, 6936731), (17, 1224129), (23, 904791), (51, 408043), (69, 301597), (113, 184161), (157, 132549), (339, 61387), (391, 53223), (471, 44183), (1173, 17741), (1921, 10833), (2599, 8007), (2669, 7797), (3611, 5763)]