21121728

素因数分解:

$2^6\times 3^1\times {\mathrm{23}}^1\times {\mathrm{4783}}^1$

素因数の和:4821

約数の個数: 56

約数和(自身を含む): 58326528

約数和(自身を除く): 37204800

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 32, 46, 48, 64, 69, 92, 96, 138, 184, 192, 276, 368, 552, 736, 1104, 1472, 2208, 4416, 4783, 9566, 14349, 19132, 28698, 38264, 57396, 76528, 110009, 114792, 153056, 220018, 229584, 306112, 330027, 440036, 459168, 660054, 880072, 918336, 1320108, 1760144, 2640216, 3520288, 5280432, 7040576, 10560864, 21121728]

約数ペア:

[(1, 21121728), (2, 10560864), (3, 7040576), (4, 5280432), (6, 3520288), (8, 2640216), (12, 1760144), (16, 1320108), (23, 918336), (24, 880072), (32, 660054), (46, 459168), (48, 440036), (64, 330027), (69, 306112), (92, 229584), (96, 220018), (138, 153056), (184, 114792), (192, 110009), (276, 76528), (368, 57396), (552, 38264), (736, 28698), (1104, 19132), (1472, 14349), (2208, 9566), (4416, 4783)]