207645879

素因数分解:

$3^1\times 7^2\times {\mathrm{661}}^1\times {\mathrm{2137}}^1$

素因数の和:2815

約数の個数: 24

約数和(自身を含む): 322701168

約数和(自身を除く): 115055289

約数列:

[1, 3, 7, 21, 49, 147, 661, 1983, 2137, 4627, 6411, 13881, 14959, 32389, 44877, 97167, 104713, 314139, 1412557, 4237671, 9887899, 29663697, 69215293, 207645879]

約数ペア:

[(1, 207645879), (3, 69215293), (7, 29663697), (21, 9887899), (49, 4237671), (147, 1412557), (661, 314139), (1983, 104713), (2137, 97167), (4627, 44877), (6411, 32389), (13881, 14959)]