18690870242

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{239}}^1\times {\mathrm{3631}}^1$

素因数の和:3983

約数の個数: 48

約数和(自身を含む): 31302028800

約数和(自身を除く): 12611158558

約数列:

[1, 2, 11, 22, 89, 121, 178, 239, 242, 478, 979, 1958, 2629, 3631, 5258, 7262, 10769, 21271, 21538, 28919, 39941, 42542, 57838, 79882, 233981, 323159, 439351, 467962, 646318, 867809, 878702, 1735618, 2573791, 3554749, 5147582, 7109498, 9545899, 19091798, 39102239, 77235001, 78204478, 105004889, 154470002, 210009778, 849585011, 1699170022, 9345435121, 18690870242]

約数ペア:

[(1, 18690870242), (2, 9345435121), (11, 1699170022), (22, 849585011), (89, 210009778), (121, 154470002), (178, 105004889), (239, 78204478), (242, 77235001), (478, 39102239), (979, 19091798), (1958, 9545899), (2629, 7109498), (3631, 5147582), (5258, 3554749), (7262, 2573791), (10769, 1735618), (21271, 878702), (21538, 867809), (28919, 646318), (39941, 467962), (42542, 439351), (57838, 323159), (79882, 233981)]