2145556

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:176

約数の個数: 48

約数和(自身を含む): 4681600

約数和(自身を除く): 2536044

約数列:

[1, 2, 4, 7, 14, 19, 28, 37, 38, 74, 76, 109, 133, 148, 218, 259, 266, 436, 518, 532, 703, 763, 1036, 1406, 1526, 2071, 2812, 3052, 4033, 4142, 4921, 8066, 8284, 9842, 14497, 16132, 19684, 28231, 28994, 56462, 57988, 76627, 112924, 153254, 306508, 536389, 1072778, 2145556]

約数ペア:

[(1, 2145556), (2, 1072778), (4, 536389), (7, 306508), (14, 153254), (19, 112924), (28, 76627), (37, 57988), (38, 56462), (74, 28994), (76, 28231), (109, 19684), (133, 16132), (148, 14497), (218, 9842), (259, 8284), (266, 8066), (436, 4921), (518, 4142), (532, 4033), (703, 3052), (763, 2812), (1036, 2071), (1406, 1526)]