21149206

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{18917}}^1$

素因数の和:18975

約数の個数: 16

約数和(自身を含む): 34960464

約数和(自身を除く): 13811258

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 18917, 37834, 245921, 491842, 813431, 1626862, 10574603, 21149206]

約数ペア:

[(1, 21149206), (2, 10574603), (13, 1626862), (26, 813431), (43, 491842), (86, 245921), (559, 37834), (1118, 18917)]