19871488

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^1\times {\mathrm{853}}^1$

素因数の和:889

約数の個数: 72

約数和(自身を含む): 48876128

約数和(自身を除く): 29004640

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 256, 364, 416, 448, 728, 832, 853, 896, 1456, 1664, 1706, 1792, 2912, 3328, 3412, 5824, 5971, 6824, 11089, 11648, 11942, 13648, 22178, 23296, 23884, 27296, 44356, 47768, 54592, 77623, 88712, 95536, 109184, 155246, 177424, 191072, 218368, 310492, 354848, 382144, 620984, 709696, 764288, 1241968, 1419392, 1528576, 2483936, 2838784, 4967872, 9935744, 19871488]

約数ペア:

[(1, 19871488), (2, 9935744), (4, 4967872), (7, 2838784), (8, 2483936), (13, 1528576), (14, 1419392), (16, 1241968), (26, 764288), (28, 709696), (32, 620984), (52, 382144), (56, 354848), (64, 310492), (91, 218368), (104, 191072), (112, 177424), (128, 155246), (182, 109184), (208, 95536), (224, 88712), (256, 77623), (364, 54592), (416, 47768), (448, 44356), (728, 27296), (832, 23884), (853, 23296), (896, 22178), (1456, 13648), (1664, 11942), (1706, 11648), (1792, 11089), (2912, 6824), (3328, 5971), (3412, 5824)]