20259729

素因数分解:

$3^2\times 7^1\times {\mathrm{353}}^1\times {\mathrm{911}}^1$

素因数の和:1277

約数の個数: 24

約数和(自身を含む): 33576192

約数和(自身を除く): 13316463

約数列:

[1, 3, 7, 9, 21, 63, 353, 911, 1059, 2471, 2733, 3177, 6377, 7413, 8199, 19131, 22239, 57393, 321583, 964749, 2251081, 2894247, 6753243, 20259729]

約数ペア:

[(1, 20259729), (3, 6753243), (7, 2894247), (9, 2251081), (21, 964749), (63, 321583), (353, 57393), (911, 22239), (1059, 19131), (2471, 8199), (2733, 7413), (3177, 6377)]