20966168

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{4973}}^1$

素因数の和:5027

約数の個数: 32

約数和(自身を含む): 42975360

約数和(自身を除く): 22009192

約数列:

[1, 2, 4, 8, 17, 31, 34, 62, 68, 124, 136, 248, 527, 1054, 2108, 4216, 4973, 9946, 19892, 39784, 84541, 154163, 169082, 308326, 338164, 616652, 676328, 1233304, 2620771, 5241542, 10483084, 20966168]

約数ペア:

[(1, 20966168), (2, 10483084), (4, 5241542), (8, 2620771), (17, 1233304), (31, 676328), (34, 616652), (62, 338164), (68, 308326), (124, 169082), (136, 154163), (248, 84541), (527, 39784), (1054, 19892), (2108, 9946), (4216, 4973)]