18829018

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:286

約数の個数: 32

約数和(自身を含む): 31449600

約数和(自身を除く): 12620582

約数列:

[1, 2, 13, 26, 79, 89, 103, 158, 178, 206, 1027, 1157, 1339, 2054, 2314, 2678, 7031, 8137, 9167, 14062, 16274, 18334, 91403, 105781, 119171, 182806, 211562, 238342, 724193, 1448386, 9414509, 18829018]

約数ペア:

[(1, 18829018), (2, 9414509), (13, 1448386), (26, 724193), (79, 238342), (89, 211562), (103, 182806), (158, 119171), (178, 105781), (206, 91403), (1027, 18334), (1157, 16274), (1339, 14062), (2054, 9167), (2314, 8137), (2678, 7031)]