21356208

素因数分解:

$2^4\times 3^2\times {\mathrm{43}}^1\times {\mathrm{3449}}^1$

素因数の和:3506

約数の個数: 60

約数和(自身を含む): 61175400

約数和(自身を除く): 39819192

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 43, 48, 72, 86, 129, 144, 172, 258, 344, 387, 516, 688, 774, 1032, 1548, 2064, 3096, 3449, 6192, 6898, 10347, 13796, 20694, 27592, 31041, 41388, 55184, 62082, 82776, 124164, 148307, 165552, 248328, 296614, 444921, 496656, 593228, 889842, 1186456, 1334763, 1779684, 2372912, 2669526, 3559368, 5339052, 7118736, 10678104, 21356208]

約数ペア:

[(1, 21356208), (2, 10678104), (3, 7118736), (4, 5339052), (6, 3559368), (8, 2669526), (9, 2372912), (12, 1779684), (16, 1334763), (18, 1186456), (24, 889842), (36, 593228), (43, 496656), (48, 444921), (72, 296614), (86, 248328), (129, 165552), (144, 148307), (172, 124164), (258, 82776), (344, 62082), (387, 55184), (516, 41388), (688, 31041), (774, 27592), (1032, 20694), (1548, 13796), (2064, 10347), (3096, 6898), (3449, 6192)]