21204176

素因数分解:

$2^4\times 7^1\times {\mathrm{83}}^1\times {\mathrm{2281}}^1$

素因数の和:2379

約数の個数: 40

約数和(自身を含む): 47538624

約数和(自身を除く): 26334448

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 83, 112, 166, 332, 581, 664, 1162, 1328, 2281, 2324, 4562, 4648, 9124, 9296, 15967, 18248, 31934, 36496, 63868, 127736, 189323, 255472, 378646, 757292, 1325261, 1514584, 2650522, 3029168, 5301044, 10602088, 21204176]

約数ペア:

[(1, 21204176), (2, 10602088), (4, 5301044), (7, 3029168), (8, 2650522), (14, 1514584), (16, 1325261), (28, 757292), (56, 378646), (83, 255472), (112, 189323), (166, 127736), (332, 63868), (581, 36496), (664, 31934), (1162, 18248), (1328, 15967), (2281, 9296), (2324, 9124), (4562, 4648)]