21605888

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{2221}}^1$

素因数の和:2258

約数の個数: 40

約数和(自身を含む): 45462120

約数和(自身を除く): 23856232

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 512, 608, 1216, 2221, 2432, 4442, 4864, 8884, 9728, 17768, 35536, 42199, 71072, 84398, 142144, 168796, 284288, 337592, 568576, 675184, 1137152, 1350368, 2700736, 5401472, 10802944, 21605888]

約数ペア:

[(1, 21605888), (2, 10802944), (4, 5401472), (8, 2700736), (16, 1350368), (19, 1137152), (32, 675184), (38, 568576), (64, 337592), (76, 284288), (128, 168796), (152, 142144), (256, 84398), (304, 71072), (512, 42199), (608, 35536), (1216, 17768), (2221, 9728), (2432, 8884), (4442, 4864)]