18381597

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 27527808

約数和(自身を除く): 9146211

約数列:

[1, 3, 13, 39, 43, 97, 113, 129, 291, 339, 559, 1261, 1469, 1677, 3783, 4171, 4407, 4859, 10961, 12513, 14577, 32883, 54223, 63167, 142493, 162669, 189501, 427479, 471323, 1413969, 6127199, 18381597]

約数ペア:

[(1, 18381597), (3, 6127199), (13, 1413969), (39, 471323), (43, 427479), (97, 189501), (113, 162669), (129, 142493), (291, 63167), (339, 54223), (559, 32883), (1261, 14577), (1469, 12513), (1677, 10961), (3783, 4859), (4171, 4407)]