19840016

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3769}}^1$

素因数の和:3831

約数の個数: 40

約数和(自身を含む): 44878080

約数和(自身を除く): 25038064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 94, 112, 188, 329, 376, 658, 752, 1316, 2632, 3769, 5264, 7538, 15076, 26383, 30152, 52766, 60304, 105532, 177143, 211064, 354286, 422128, 708572, 1240001, 1417144, 2480002, 2834288, 4960004, 9920008, 19840016]

約数ペア:

[(1, 19840016), (2, 9920008), (4, 4960004), (7, 2834288), (8, 2480002), (14, 1417144), (16, 1240001), (28, 708572), (47, 422128), (56, 354286), (94, 211064), (112, 177143), (188, 105532), (329, 60304), (376, 52766), (658, 30152), (752, 26383), (1316, 15076), (2632, 7538), (3769, 5264)]