21420958

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{317}}^1$

素因数の和:468

約数の個数: 32

約数和(自身を含む): 36542016

約数和(自身を除く): 15121058

約数列:

[1, 2, 13, 23, 26, 46, 113, 226, 299, 317, 598, 634, 1469, 2599, 2938, 4121, 5198, 7291, 8242, 14582, 33787, 35821, 67574, 71642, 94783, 189566, 465673, 823883, 931346, 1647766, 10710479, 21420958]

約数ペア:

[(1, 21420958), (2, 10710479), (13, 1647766), (23, 931346), (26, 823883), (46, 465673), (113, 189566), (226, 94783), (299, 71642), (317, 67574), (598, 35821), (634, 33787), (1469, 14582), (2599, 8242), (2938, 7291), (4121, 5198)]