21722896

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{577}}^1$

素因数の和:779

約数の個数: 40

約数和(自身を含む): 45655064

約数和(自身を除く): 23932168

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 181, 208, 362, 577, 724, 1154, 1448, 2308, 2353, 2896, 4616, 4706, 7501, 9232, 9412, 15002, 18824, 30004, 37648, 60008, 104437, 120016, 208874, 417748, 835496, 1357681, 1670992, 2715362, 5430724, 10861448, 21722896]

約数ペア:

[(1, 21722896), (2, 10861448), (4, 5430724), (8, 2715362), (13, 1670992), (16, 1357681), (26, 835496), (52, 417748), (104, 208874), (181, 120016), (208, 104437), (362, 60008), (577, 37648), (724, 30004), (1154, 18824), (1448, 15002), (2308, 9412), (2353, 9232), (2896, 7501), (4616, 4706)]