20796545

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2843}}^1$

素因数の和:2885

約数の個数: 32

約数和(自身を含む): 32762880

約数和(自身を除く): 11966335

約数列:

[1, 5, 7, 11, 19, 35, 55, 77, 95, 133, 209, 385, 665, 1045, 1463, 2843, 7315, 14215, 19901, 31273, 54017, 99505, 156365, 218911, 270085, 378119, 594187, 1094555, 1890595, 2970935, 4159309, 20796545]

約数ペア:

[(1, 20796545), (5, 4159309), (7, 2970935), (11, 1890595), (19, 1094555), (35, 594187), (55, 378119), (77, 270085), (95, 218911), (133, 156365), (209, 99505), (385, 54017), (665, 31273), (1045, 19901), (1463, 14215), (2843, 7315)]