21742935

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:188

約数の個数: 64

約数和(自身を含む): 39813120

約数和(自身を除く): 18070185

約数列:

[1, 3, 5, 15, 19, 23, 31, 57, 69, 93, 95, 107, 115, 155, 285, 321, 345, 437, 465, 535, 589, 713, 1311, 1605, 1767, 2033, 2139, 2185, 2461, 2945, 3317, 3565, 6099, 6555, 7383, 8835, 9951, 10165, 10695, 12305, 13547, 16585, 30495, 36915, 40641, 46759, 49755, 63023, 67735, 76291, 140277, 189069, 203205, 228873, 233795, 315115, 381455, 701385, 945345, 1144365, 1449529, 4348587, 7247645, 21742935]

約数ペア:

[(1, 21742935), (3, 7247645), (5, 4348587), (15, 1449529), (19, 1144365), (23, 945345), (31, 701385), (57, 381455), (69, 315115), (93, 233795), (95, 228873), (107, 203205), (115, 189069), (155, 140277), (285, 76291), (321, 67735), (345, 63023), (437, 49755), (465, 46759), (535, 40641), (589, 36915), (713, 30495), (1311, 16585), (1605, 13547), (1767, 12305), (2033, 10695), (2139, 10165), (2185, 9951), (2461, 8835), (2945, 7383), (3317, 6555), (3565, 6099)]