19858748

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{613}}^1$

素因数の和:726

約数の個数: 48

約数和(自身を含む): 43323840

約数和(自身を除く): 23465092

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 89, 91, 178, 182, 356, 364, 613, 623, 1157, 1226, 1246, 2314, 2452, 2492, 4291, 4628, 7969, 8099, 8582, 15938, 16198, 17164, 31876, 32396, 54557, 55783, 109114, 111566, 218228, 223132, 381899, 709241, 763798, 1418482, 1527596, 2836964, 4964687, 9929374, 19858748]

約数ペア:

[(1, 19858748), (2, 9929374), (4, 4964687), (7, 2836964), (13, 1527596), (14, 1418482), (26, 763798), (28, 709241), (52, 381899), (89, 223132), (91, 218228), (178, 111566), (182, 109114), (356, 55783), (364, 54557), (613, 32396), (623, 31876), (1157, 17164), (1226, 16198), (1246, 15938), (2314, 8582), (2452, 8099), (2492, 7969), (4291, 4628)]