21313448

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{919}}^1$

素因数の和:1161

約数の個数: 32

約数和(自身を含む): 43276800

約数和(自身を除く): 21963352

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 223, 446, 892, 919, 1784, 1838, 2899, 3676, 5798, 7352, 11596, 11947, 23192, 23894, 47788, 95576, 204937, 409874, 819748, 1639496, 2664181, 5328362, 10656724, 21313448]

約数ペア:

[(1, 21313448), (2, 10656724), (4, 5328362), (8, 2664181), (13, 1639496), (26, 819748), (52, 409874), (104, 204937), (223, 95576), (446, 47788), (892, 23894), (919, 23192), (1784, 11947), (1838, 11596), (2899, 7352), (3676, 5798)]