20590262

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1$

素因数の和:297

約数の個数: 64

約数和(自身を含む): 42024960

約数和(自身を除く): 21434698

約数列:

[1, 2, 7, 11, 14, 19, 22, 31, 38, 62, 77, 133, 154, 209, 217, 227, 266, 341, 418, 434, 454, 589, 682, 1178, 1463, 1589, 2387, 2497, 2926, 3178, 4123, 4313, 4774, 4994, 6479, 7037, 8246, 8626, 12958, 14074, 17479, 30191, 34958, 45353, 47443, 49259, 60382, 77407, 90706, 94886, 98518, 133703, 154814, 267406, 332101, 541849, 664202, 935921, 1083698, 1470733, 1871842, 2941466, 10295131, 20590262]

約数ペア:

[(1, 20590262), (2, 10295131), (7, 2941466), (11, 1871842), (14, 1470733), (19, 1083698), (22, 935921), (31, 664202), (38, 541849), (62, 332101), (77, 267406), (133, 154814), (154, 133703), (209, 98518), (217, 94886), (227, 90706), (266, 77407), (341, 60382), (418, 49259), (434, 47443), (454, 45353), (589, 34958), (682, 30191), (1178, 17479), (1463, 14074), (1589, 12958), (2387, 8626), (2497, 8246), (2926, 7037), (3178, 6479), (4123, 4994), (4313, 4774)]