18455745

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2$

素因数の和:103

約数の個数: 96

約数和(自身を含む): 40135680

約数和(自身を除く): 21679935

約数列:

[1, 3, 5, 7, 11, 15, 19, 21, 29, 33, 35, 55, 57, 77, 87, 95, 105, 133, 145, 165, 203, 209, 231, 285, 319, 385, 399, 435, 551, 609, 627, 665, 841, 957, 1015, 1045, 1155, 1463, 1595, 1653, 1995, 2233, 2523, 2755, 3045, 3135, 3857, 4205, 4389, 4785, 5887, 6061, 6699, 7315, 8265, 9251, 11165, 11571, 12615, 15979, 17661, 18183, 19285, 21945, 27753, 29435, 30305, 33495, 42427, 46255, 47937, 57855, 64757, 79895, 88305, 90915, 111853, 127281, 138765, 175769, 194271, 212135, 239685, 323785, 335559, 527307, 559265, 636405, 878845, 971355, 1230383, 1677795, 2636535, 3691149, 6151915, 18455745]

約数ペア:

[(1, 18455745), (3, 6151915), (5, 3691149), (7, 2636535), (11, 1677795), (15, 1230383), (19, 971355), (21, 878845), (29, 636405), (33, 559265), (35, 527307), (55, 335559), (57, 323785), (77, 239685), (87, 212135), (95, 194271), (105, 175769), (133, 138765), (145, 127281), (165, 111853), (203, 90915), (209, 88305), (231, 79895), (285, 64757), (319, 57855), (385, 47937), (399, 46255), (435, 42427), (551, 33495), (609, 30305), (627, 29435), (665, 27753), (841, 21945), (957, 19285), (1015, 18183), (1045, 17661), (1155, 15979), (1463, 12615), (1595, 11571), (1653, 11165), (1995, 9251), (2233, 8265), (2523, 7315), (2755, 6699), (3045, 6061), (3135, 5887), (3857, 4785), (4205, 4389)]