21144286205

素因数分解:

$5^1\times 7^2\times {\mathrm{1187}}^1\times {\mathrm{72707}}^1$

素因数の和:73913

約数の個数: 24

約数和(自身を含む): 29540969568

約数和(自身を除く): 8396683363

約数列:

[1, 5, 7, 35, 49, 245, 1187, 5935, 8309, 41545, 58163, 72707, 290815, 363535, 508949, 2544745, 3562643, 17813215, 86303209, 431516045, 604122463, 3020612315, 4228857241, 21144286205]

約数ペア:

[(1, 21144286205), (5, 4228857241), (7, 3020612315), (35, 604122463), (49, 431516045), (245, 86303209), (1187, 17813215), (5935, 3562643), (8309, 2544745), (41545, 508949), (58163, 363535), (72707, 290815)]