21457104

素因数分解:

$2^4\times 3^1\times {\mathrm{41}}^1\times {\mathrm{10903}}^1$

素因数の和:10955

約数の個数: 40

約数和(自身を含む): 56788032

約数和(自身を除く): 35330928

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 82, 123, 164, 246, 328, 492, 656, 984, 1968, 10903, 21806, 32709, 43612, 65418, 87224, 130836, 174448, 261672, 447023, 523344, 894046, 1341069, 1788092, 2682138, 3576184, 5364276, 7152368, 10728552, 21457104]

約数ペア:

[(1, 21457104), (2, 10728552), (3, 7152368), (4, 5364276), (6, 3576184), (8, 2682138), (12, 1788092), (16, 1341069), (24, 894046), (41, 523344), (48, 447023), (82, 261672), (123, 174448), (164, 130836), (246, 87224), (328, 65418), (492, 43612), (656, 32709), (984, 21806), (1968, 10903)]