21644007

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2179}}^1$

素因数の和:2243

約数の個数: 32

約数和(自身を含む): 36833280

約数和(自身を除く): 15189273

約数列:

[1, 3, 7, 11, 21, 33, 43, 77, 129, 231, 301, 473, 903, 1419, 2179, 3311, 6537, 9933, 15253, 23969, 45759, 71907, 93697, 167783, 281091, 503349, 655879, 1030667, 1967637, 3092001, 7214669, 21644007]

約数ペア:

[(1, 21644007), (3, 7214669), (7, 3092001), (11, 1967637), (21, 1030667), (33, 655879), (43, 503349), (77, 281091), (129, 167783), (231, 93697), (301, 71907), (473, 45759), (903, 23969), (1419, 15253), (2179, 9933), (3311, 6537)]