28211282

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{18061}}^1$

素因数の和:18145

約数の個数: 16

約数和(自身を含む): 46816704

約数和(自身を除く): 18605422

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 18061, 36122, 198671, 397342, 1282331, 2564662, 14105641, 28211282]

約数ペア:

[(1, 28211282), (2, 14105641), (11, 2564662), (22, 1282331), (71, 397342), (142, 198671), (781, 36122), (1562, 18061)]