21643276

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{5471}}^1$

素因数の和:5541

約数の個数: 24

約数和(自身を含む): 40449024

約数和(自身を除く): 18805748

約数列:

[1, 2, 4, 23, 43, 46, 86, 92, 172, 989, 1978, 3956, 5471, 10942, 21884, 125833, 235253, 251666, 470506, 503332, 941012, 5410819, 10821638, 21643276]

約数ペア:

[(1, 21643276), (2, 10821638), (4, 5410819), (23, 941012), (43, 503332), (46, 470506), (86, 251666), (92, 235253), (172, 125833), (989, 21884), (1978, 10942), (3956, 5471)]