18668692

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{277}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 39231360

約数和(自身を除く): 20562668

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 83, 116, 166, 203, 277, 332, 406, 554, 581, 812, 1108, 1162, 1939, 2324, 2407, 3878, 4814, 7756, 8033, 9628, 16066, 16849, 22991, 32132, 33698, 45982, 56231, 67396, 91964, 112462, 160937, 224924, 321874, 643748, 666739, 1333478, 2666956, 4667173, 9334346, 18668692]

約数ペア:

[(1, 18668692), (2, 9334346), (4, 4667173), (7, 2666956), (14, 1333478), (28, 666739), (29, 643748), (58, 321874), (83, 224924), (116, 160937), (166, 112462), (203, 91964), (277, 67396), (332, 56231), (406, 45982), (554, 33698), (581, 32132), (812, 22991), (1108, 16849), (1162, 16066), (1939, 9628), (2324, 8033), (2407, 7756), (3878, 4814)]