18103921

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{439}}^1$

素因数の和:636

約数の個数: 16

約数和(自身を含む): 20782080

約数和(自身を除く): 2678159

約数列:

[1, 11, 23, 163, 253, 439, 1793, 3749, 4829, 10097, 41239, 71557, 111067, 787127, 1645811, 18103921]

約数ペア:

[(1, 18103921), (11, 1645811), (23, 787127), (163, 111067), (253, 71557), (439, 41239), (1793, 10097), (3749, 4829)]