20761564

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{2011}}^1$

素因数の和:2133

約数の個数: 24

約数和(自身を含む): 38026800

約数和(自身を除く): 17265236

約数列:

[1, 2, 4, 29, 58, 89, 116, 178, 356, 2011, 2581, 4022, 5162, 8044, 10324, 58319, 116638, 178979, 233276, 357958, 715916, 5190391, 10380782, 20761564]

約数ペア:

[(1, 20761564), (2, 10380782), (4, 5190391), (29, 715916), (58, 357958), (89, 233276), (116, 178979), (178, 116638), (356, 58319), (2011, 10324), (2581, 8044), (4022, 5162)]