18994395

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{9521}}^1$

素因数の和:9555

約数の個数: 32

約数和(自身を含む): 36564480

約数和(自身を除く): 17570085

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 9521, 28563, 47605, 66647, 142815, 180899, 199941, 333235, 542697, 904495, 999705, 1266293, 2713485, 3798879, 6331465, 18994395]

約数ペア:

[(1, 18994395), (3, 6331465), (5, 3798879), (7, 2713485), (15, 1266293), (19, 999705), (21, 904495), (35, 542697), (57, 333235), (95, 199941), (105, 180899), (133, 142815), (285, 66647), (399, 47605), (665, 28563), (1995, 9521)]