20749936

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{673}}^1$

素因数の和:769

約数の個数: 40

約数和(自身を含む): 42122304

約数和(自身を除く): 21372368

約数列:

[1, 2, 4, 8, 16, 41, 47, 82, 94, 164, 188, 328, 376, 656, 673, 752, 1346, 1927, 2692, 3854, 5384, 7708, 10768, 15416, 27593, 30832, 31631, 55186, 63262, 110372, 126524, 220744, 253048, 441488, 506096, 1296871, 2593742, 5187484, 10374968, 20749936]

約数ペア:

[(1, 20749936), (2, 10374968), (4, 5187484), (8, 2593742), (16, 1296871), (41, 506096), (47, 441488), (82, 253048), (94, 220744), (164, 126524), (188, 110372), (328, 63262), (376, 55186), (656, 31631), (673, 30832), (752, 27593), (1346, 15416), (1927, 10768), (2692, 7708), (3854, 5384)]