18781936

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{28631}}^1$

素因数の和:28680

約数の個数: 20

約数和(自身を含む): 37278864

約数和(自身を除く): 18496928

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 28631, 57262, 114524, 229048, 458096, 1173871, 2347742, 4695484, 9390968, 18781936]

約数ペア:

[(1, 18781936), (2, 9390968), (4, 4695484), (8, 2347742), (16, 1173871), (41, 458096), (82, 229048), (164, 114524), (328, 57262), (656, 28631)]