21336620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{56149}}^1$

素因数の和:56177

約数の個数: 24

約数和(自身を含む): 47166000

約数和(自身を除く): 25829380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 56149, 112298, 224596, 280745, 561490, 1066831, 1122980, 2133662, 4267324, 5334155, 10668310, 21336620]

約数ペア:

[(1, 21336620), (2, 10668310), (4, 5334155), (5, 4267324), (10, 2133662), (19, 1122980), (20, 1066831), (38, 561490), (76, 280745), (95, 224596), (190, 112298), (380, 56149)]