21144669

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1061}}^1$

素因数の和:1157

約数の個数: 32

約数和(自身を含む): 35207424

約数和(自身を除く): 14062755

約数列:

[1, 3, 7, 13, 21, 39, 73, 91, 219, 273, 511, 949, 1061, 1533, 2847, 3183, 6643, 7427, 13793, 19929, 22281, 41379, 77453, 96551, 232359, 289653, 542171, 1006889, 1626513, 3020667, 7048223, 21144669]

約数ペア:

[(1, 21144669), (3, 7048223), (7, 3020667), (13, 1626513), (21, 1006889), (39, 542171), (73, 289653), (91, 232359), (219, 96551), (273, 77453), (511, 41379), (949, 22281), (1061, 19929), (1533, 13793), (2847, 7427), (3183, 6643)]