18909446

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{229}}^1$

素因数の和:344

約数の個数: 32

約数和(自身を含む): 31298400

約数和(自身を除く): 12388954

約数列:

[1, 2, 19, 38, 41, 53, 82, 106, 229, 458, 779, 1007, 1558, 2014, 2173, 4346, 4351, 8702, 9389, 12137, 18778, 24274, 41287, 82574, 178391, 230603, 356782, 461206, 497617, 995234, 9454723, 18909446]

約数ペア:

[(1, 18909446), (2, 9454723), (19, 995234), (38, 497617), (41, 461206), (53, 356782), (82, 230603), (106, 178391), (229, 82574), (458, 41287), (779, 24274), (1007, 18778), (1558, 12137), (2014, 9389), (2173, 8702), (4346, 4351)]