21785176

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 48787200

約数和(自身を除く): 27002024

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 83, 86, 109, 166, 172, 218, 301, 332, 344, 436, 581, 602, 664, 763, 872, 1162, 1204, 1526, 2324, 2408, 3052, 3569, 4648, 4687, 6104, 7138, 9047, 9374, 14276, 18094, 18748, 24983, 28552, 32809, 36188, 37496, 49966, 63329, 65618, 72376, 99932, 126658, 131236, 199864, 253316, 262472, 389021, 506632, 778042, 1556084, 2723147, 3112168, 5446294, 10892588, 21785176]

約数ペア:

[(1, 21785176), (2, 10892588), (4, 5446294), (7, 3112168), (8, 2723147), (14, 1556084), (28, 778042), (43, 506632), (56, 389021), (83, 262472), (86, 253316), (109, 199864), (166, 131236), (172, 126658), (218, 99932), (301, 72376), (332, 65618), (344, 63329), (436, 49966), (581, 37496), (602, 36188), (664, 32809), (763, 28552), (872, 24983), (1162, 18748), (1204, 18094), (1526, 14276), (2324, 9374), (2408, 9047), (3052, 7138), (3569, 6104), (4648, 4687)]