20784294237

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5051}}^1\times {\mathrm{10313}}^1$

素因数の和:15393

約数の個数: 32

約数和(自身を含む): 33348049920

約数和(自身を除く): 12563755683

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 5051, 10313, 15153, 30939, 35357, 72191, 95969, 106071, 195947, 216573, 287907, 587841, 671783, 1371629, 2015349, 4114887, 52090963, 156272889, 364636741, 989728297, 1093910223, 2969184891, 6928098079, 20784294237]

約数ペア:

[(1, 20784294237), (3, 6928098079), (7, 2969184891), (19, 1093910223), (21, 989728297), (57, 364636741), (133, 156272889), (399, 52090963), (5051, 4114887), (10313, 2015349), (15153, 1371629), (30939, 671783), (35357, 587841), (72191, 287907), (95969, 216573), (106071, 195947)]