21769168

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{19163}}^1$

素因数の和:19242

約数の個数: 20

約数和(自身を含む): 42774048

約数和(自身を除く): 21004880

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 19163, 38326, 76652, 153304, 306608, 1360573, 2721146, 5442292, 10884584, 21769168]

約数ペア:

[(1, 21769168), (2, 10884584), (4, 5442292), (8, 2721146), (16, 1360573), (71, 306608), (142, 153304), (284, 76652), (568, 38326), (1136, 19163)]