18890668

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{229}}^1\times {\mathrm{503}}^1$

素因数の和:777

約数の個数: 24

約数和(自身を含む): 34080480

約数和(自身を除く): 15189812

約数列:

[1, 2, 4, 41, 82, 164, 229, 458, 503, 916, 1006, 2012, 9389, 18778, 20623, 37556, 41246, 82492, 115187, 230374, 460748, 4722667, 9445334, 18890668]

約数ペア:

[(1, 18890668), (2, 9445334), (4, 4722667), (41, 460748), (82, 230374), (164, 115187), (229, 82492), (458, 41246), (503, 37556), (916, 20623), (1006, 18778), (2012, 9389)]