21641312

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8783}}^1$

素因数の和:8811

約数の個数: 48

約数和(自身を含む): 53125632

約数和(自身を除く): 31484320

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 77, 88, 112, 154, 176, 224, 308, 352, 616, 1232, 2464, 8783, 17566, 35132, 61481, 70264, 96613, 122962, 140528, 193226, 245924, 281056, 386452, 491848, 676291, 772904, 983696, 1352582, 1545808, 1967392, 2705164, 3091616, 5410328, 10820656, 21641312]

約数ペア:

[(1, 21641312), (2, 10820656), (4, 5410328), (7, 3091616), (8, 2705164), (11, 1967392), (14, 1545808), (16, 1352582), (22, 983696), (28, 772904), (32, 676291), (44, 491848), (56, 386452), (77, 281056), (88, 245924), (112, 193226), (154, 140528), (176, 122962), (224, 96613), (308, 70264), (352, 61481), (616, 35132), (1232, 17566), (2464, 8783)]