18009784

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1103}}^1$

素因数の和:1279

約数の個数: 32

約数和(自身を含む): 36630720

約数和(自身を除く): 18620936

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 157, 314, 628, 1103, 1256, 2041, 2206, 4082, 4412, 8164, 8824, 14339, 16328, 28678, 57356, 114712, 173171, 346342, 692684, 1385368, 2251223, 4502446, 9004892, 18009784]

約数ペア:

[(1, 18009784), (2, 9004892), (4, 4502446), (8, 2251223), (13, 1385368), (26, 692684), (52, 346342), (104, 173171), (157, 114712), (314, 57356), (628, 28678), (1103, 16328), (1256, 14339), (2041, 8824), (2206, 8164), (4082, 4412)]