20389435

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{953}}^1$

素因数の和:1358

約数の個数: 16

約数和(自身を含む): 26788320

約数和(自身を除く): 6398885

約数列:

[1, 5, 11, 55, 389, 953, 1945, 4279, 4765, 10483, 21395, 52415, 370717, 1853585, 4077887, 20389435]

約数ペア:

[(1, 20389435), (5, 4077887), (11, 1853585), (55, 370717), (389, 52415), (953, 21395), (1945, 10483), (4279, 4765)]