20542857

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{4937}}^1$

素因数の和:5032

約数の個数: 16

約数和(自身を含む): 29232960

約数和(自身を除く): 8690103

約数列:

[1, 3, 19, 57, 73, 219, 1387, 4161, 4937, 14811, 93803, 281409, 360401, 1081203, 6847619, 20542857]

約数ペア:

[(1, 20542857), (3, 6847619), (19, 1081203), (57, 360401), (73, 281409), (219, 93803), (1387, 14811), (4161, 4937)]