21803908

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{33857}}^1$

素因数の和:33891

約数の個数: 24

約数和(自身を含む): 45505152

約数和(自身を除く): 23701244

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 33857, 67714, 135428, 236999, 473998, 778711, 947996, 1557422, 3114844, 5450977, 10901954, 21803908]

約数ペア:

[(1, 21803908), (2, 10901954), (4, 5450977), (7, 3114844), (14, 1557422), (23, 947996), (28, 778711), (46, 473998), (92, 236999), (161, 135428), (322, 67714), (644, 33857)]