18427984

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{12941}}^1$

素因数の和:13038

約数の個数: 20

約数和(自身を含む): 36108180

約数和(自身を除く): 17680196

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 12941, 25882, 51764, 103528, 207056, 1151749, 2303498, 4606996, 9213992, 18427984]

約数ペア:

[(1, 18427984), (2, 9213992), (4, 4606996), (8, 2303498), (16, 1151749), (89, 207056), (178, 103528), (356, 51764), (712, 25882), (1424, 12941)]