21048328

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{8741}}^1$

素因数の和:8797

約数の個数: 32

約数和(自身を含む): 46157760

約数和(自身を除く): 25109432

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 8741, 17482, 34964, 61187, 69928, 122374, 244748, 375863, 489496, 751726, 1503452, 2631041, 3006904, 5262082, 10524164, 21048328]

約数ペア:

[(1, 21048328), (2, 10524164), (4, 5262082), (7, 3006904), (8, 2631041), (14, 1503452), (28, 751726), (43, 489496), (56, 375863), (86, 244748), (172, 122374), (301, 69928), (344, 61187), (602, 34964), (1204, 17482), (2408, 8741)]