19508368

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{557}}^1$

素因数の和:775

約数の個数: 40

約数和(自身を含む): 41515200

約数和(自身を除く): 22006832

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 199, 398, 557, 796, 1114, 1592, 2189, 2228, 3184, 4378, 4456, 6127, 8756, 8912, 12254, 17512, 24508, 35024, 49016, 98032, 110843, 221686, 443372, 886744, 1219273, 1773488, 2438546, 4877092, 9754184, 19508368]

約数ペア:

[(1, 19508368), (2, 9754184), (4, 4877092), (8, 2438546), (11, 1773488), (16, 1219273), (22, 886744), (44, 443372), (88, 221686), (176, 110843), (199, 98032), (398, 49016), (557, 35024), (796, 24508), (1114, 17512), (1592, 12254), (2189, 8912), (2228, 8756), (3184, 6127), (4378, 4456)]