18277623

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:245

約数の個数: 64

約数和(自身を含む): 34298880

約数和(自身を除く): 16021257

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 43, 63, 91, 117, 129, 173, 189, 273, 301, 351, 387, 519, 559, 819, 903, 1161, 1211, 1557, 1677, 2249, 2457, 2709, 3633, 3913, 4671, 5031, 6747, 7439, 8127, 10899, 11739, 15093, 15743, 20241, 22317, 32697, 35217, 47229, 52073, 60723, 66951, 96707, 105651, 141687, 156219, 200853, 290121, 425061, 468657, 676949, 870363, 1405971, 2030847, 2611089, 6092541, 18277623]

約数ペア:

[(1, 18277623), (3, 6092541), (7, 2611089), (9, 2030847), (13, 1405971), (21, 870363), (27, 676949), (39, 468657), (43, 425061), (63, 290121), (91, 200853), (117, 156219), (129, 141687), (173, 105651), (189, 96707), (273, 66951), (301, 60723), (351, 52073), (387, 47229), (519, 35217), (559, 32697), (819, 22317), (903, 20241), (1161, 15743), (1211, 15093), (1557, 11739), (1677, 10899), (2249, 8127), (2457, 7439), (2709, 6747), (3633, 5031), (3913, 4671)]