18306519

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 33116160

約数和(自身を除く): 14809641

約数列:

[1, 3, 7, 11, 19, 21, 33, 43, 57, 77, 97, 129, 133, 209, 231, 291, 301, 399, 473, 627, 679, 817, 903, 1067, 1419, 1463, 1843, 2037, 2451, 3201, 3311, 4171, 4389, 5529, 5719, 7469, 8987, 9933, 12513, 12901, 17157, 20273, 22407, 26961, 29197, 38703, 45881, 60819, 62909, 79249, 87591, 137643, 141911, 188727, 237747, 321167, 425733, 554743, 871739, 963501, 1664229, 2615217, 6102173, 18306519]

約数ペア:

[(1, 18306519), (3, 6102173), (7, 2615217), (11, 1664229), (19, 963501), (21, 871739), (33, 554743), (43, 425733), (57, 321167), (77, 237747), (97, 188727), (129, 141911), (133, 137643), (209, 87591), (231, 79249), (291, 62909), (301, 60819), (399, 45881), (473, 38703), (627, 29197), (679, 26961), (817, 22407), (903, 20273), (1067, 17157), (1419, 12901), (1463, 12513), (1843, 9933), (2037, 8987), (2451, 7469), (3201, 5719), (3311, 5529), (4171, 4389)]