20673895

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{277}}^1$

素因数の和:375

約数の個数: 32

約数和(自身を含む): 28823040

約数和(自身を除く): 8149145

約数列:

[1, 5, 11, 23, 55, 59, 115, 253, 277, 295, 649, 1265, 1357, 1385, 3047, 3245, 6371, 6785, 14927, 15235, 16343, 31855, 70081, 74635, 81715, 179773, 350405, 375889, 898865, 1879445, 4134779, 20673895]

約数ペア:

[(1, 20673895), (5, 4134779), (11, 1879445), (23, 898865), (55, 375889), (59, 350405), (115, 179773), (253, 81715), (277, 74635), (295, 70081), (649, 31855), (1265, 16343), (1357, 15235), (1385, 14927), (3047, 6785), (3245, 6371)]