21192112

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28181}}^1$

素因数の和:28236

約数の個数: 20

約数和(自身を含む): 41934816

約数和(自身を除く): 20742704

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28181, 56362, 112724, 225448, 450896, 1324507, 2649014, 5298028, 10596056, 21192112]

約数ペア:

[(1, 21192112), (2, 10596056), (4, 5298028), (8, 2649014), (16, 1324507), (47, 450896), (94, 225448), (188, 112724), (376, 56362), (752, 28181)]