20464563

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 32256000

約数和(自身を除く): 11791437

約数列:

[1, 3, 7, 21, 59, 83, 177, 199, 249, 413, 581, 597, 1239, 1393, 1743, 4179, 4897, 11741, 14691, 16517, 34279, 35223, 49551, 82187, 102837, 115619, 246561, 346857, 974503, 2923509, 6821521, 20464563]

約数ペア:

[(1, 20464563), (3, 6821521), (7, 2923509), (21, 974503), (59, 346857), (83, 246561), (177, 115619), (199, 102837), (249, 82187), (413, 49551), (581, 35223), (597, 34279), (1239, 16517), (1393, 14691), (1743, 11741), (4179, 4897)]