20642804

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{56711}}^1$

素因数の和:56735

約数の個数: 24

約数和(自身を含む): 44462208

約数和(自身を除く): 23819404

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 56711, 113422, 226844, 396977, 737243, 793954, 1474486, 1587908, 2948972, 5160701, 10321402, 20642804]

約数ペア:

[(1, 20642804), (2, 10321402), (4, 5160701), (7, 2948972), (13, 1587908), (14, 1474486), (26, 793954), (28, 737243), (52, 396977), (91, 226844), (182, 113422), (364, 56711)]