20176856

素因数分解:

$2^3\times 7^1\times {\mathrm{571}}^1\times {\mathrm{631}}^1$

素因数の和:1215

約数の個数: 32

約数和(自身を含む): 43380480

約数和(自身を除く): 23203624

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 571, 631, 1142, 1262, 2284, 2524, 3997, 4417, 4568, 5048, 7994, 8834, 15988, 17668, 31976, 35336, 360301, 720602, 1441204, 2522107, 2882408, 5044214, 10088428, 20176856]

約数ペア:

[(1, 20176856), (2, 10088428), (4, 5044214), (7, 2882408), (8, 2522107), (14, 1441204), (28, 720602), (56, 360301), (571, 35336), (631, 31976), (1142, 17668), (1262, 15988), (2284, 8834), (2524, 7994), (3997, 5048), (4417, 4568)]