12728709

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6967}}^1$

素因数の和:7009

約数の個数: 24

約数和(自身を含む): 21740160

約数和(自身を除く): 9011451

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 6967, 20901, 48769, 62703, 146307, 202043, 438921, 606129, 1414301, 1818387, 4242903, 12728709]

約数ペア:

[(1, 12728709), (3, 4242903), (7, 1818387), (9, 1414301), (21, 606129), (29, 438921), (63, 202043), (87, 146307), (203, 62703), (261, 48769), (609, 20901), (1827, 6967)]