21305642

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1\times {\mathrm{443}}^1$

素因数の和:757

約数の個数: 16

約数和(自身を含む): 32447520

約数和(自身を除く): 11141878

約数列:

[1, 2, 139, 173, 278, 346, 443, 886, 24047, 48094, 61577, 76639, 123154, 153278, 10652821, 21305642]

約数ペア:

[(1, 21305642), (2, 10652821), (139, 153278), (173, 123154), (278, 76639), (346, 61577), (443, 48094), (886, 24047)]