21185584

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:194

約数の個数: 80

約数和(自身を含む): 49496832

約数和(自身を除く): 28311248

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 53, 56, 83, 86, 106, 112, 166, 172, 212, 301, 332, 344, 371, 424, 581, 602, 664, 688, 742, 848, 1162, 1204, 1328, 1484, 2279, 2324, 2408, 2968, 3569, 4399, 4558, 4648, 4816, 5936, 7138, 8798, 9116, 9296, 14276, 15953, 17596, 18232, 24983, 28552, 30793, 31906, 35192, 36464, 49966, 57104, 61586, 63812, 70384, 99932, 123172, 127624, 189157, 199864, 246344, 255248, 378314, 399728, 492688, 756628, 1324099, 1513256, 2648198, 3026512, 5296396, 10592792, 21185584]

約数ペア:

[(1, 21185584), (2, 10592792), (4, 5296396), (7, 3026512), (8, 2648198), (14, 1513256), (16, 1324099), (28, 756628), (43, 492688), (53, 399728), (56, 378314), (83, 255248), (86, 246344), (106, 199864), (112, 189157), (166, 127624), (172, 123172), (212, 99932), (301, 70384), (332, 63812), (344, 61586), (371, 57104), (424, 49966), (581, 36464), (602, 35192), (664, 31906), (688, 30793), (742, 28552), (848, 24983), (1162, 18232), (1204, 17596), (1328, 15953), (1484, 14276), (2279, 9296), (2324, 9116), (2408, 8798), (2968, 7138), (3569, 5936), (4399, 4816), (4558, 4648)]