81645218

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{10667}}^1$

素因数の和:10801

約数の個数: 16

約数和(自身を含む): 126735840

約数和(自身を除く): 45090622

約数列:

[1, 2, 43, 86, 89, 178, 3827, 7654, 10667, 21334, 458681, 917362, 949363, 1898726, 40822609, 81645218]

約数ペア:

[(1, 81645218), (2, 40822609), (43, 1898726), (86, 949363), (89, 917362), (178, 458681), (3827, 21334), (7654, 10667)]