21784772

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{2213}}^1$

素因数の和:2347

約数の個数: 24

約数和(自身を含む): 40170816

約数和(自身を除く): 18386044

約数列:

[1, 2, 4, 23, 46, 92, 107, 214, 428, 2213, 2461, 4426, 4922, 8852, 9844, 50899, 101798, 203596, 236791, 473582, 947164, 5446193, 10892386, 21784772]

約数ペア:

[(1, 21784772), (2, 10892386), (4, 5446193), (23, 947164), (46, 473582), (92, 236791), (107, 203596), (214, 101798), (428, 50899), (2213, 9844), (2461, 8852), (4426, 4922)]