20964543

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{1867}}^1$

素因数の和:2086

約数の個数: 16

約数和(自身を含む): 29589120

約数和(自身を除く): 8624577

約数列:

[1, 3, 19, 57, 197, 591, 1867, 3743, 5601, 11229, 35473, 106419, 367799, 1103397, 6988181, 20964543]

約数ペア:

[(1, 20964543), (3, 6988181), (19, 1103397), (57, 367799), (197, 106419), (591, 35473), (1867, 11229), (3743, 5601)]