21669728

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1229}}^1$

素因数の和:1287

約数の個数: 48

約数和(自身を含む): 46494000

約数和(自身を除く): 24824272

約数列:

[1, 2, 4, 8, 16, 19, 29, 32, 38, 58, 76, 116, 152, 232, 304, 464, 551, 608, 928, 1102, 1229, 2204, 2458, 4408, 4916, 8816, 9832, 17632, 19664, 23351, 35641, 39328, 46702, 71282, 93404, 142564, 186808, 285128, 373616, 570256, 677179, 747232, 1140512, 1354358, 2708716, 5417432, 10834864, 21669728]

約数ペア:

[(1, 21669728), (2, 10834864), (4, 5417432), (8, 2708716), (16, 1354358), (19, 1140512), (29, 747232), (32, 677179), (38, 570256), (58, 373616), (76, 285128), (116, 186808), (152, 142564), (232, 93404), (304, 71282), (464, 46702), (551, 39328), (608, 35641), (928, 23351), (1102, 19664), (1229, 17632), (2204, 9832), (2458, 8816), (4408, 4916)]