21576392

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{787}}^1$

素因数の和:965

約数の個数: 32

約数和(自身を含む): 42552000

約数和(自身を除く): 20975608

約数列:

[1, 2, 4, 8, 23, 46, 92, 149, 184, 298, 596, 787, 1192, 1574, 3148, 3427, 6296, 6854, 13708, 18101, 27416, 36202, 72404, 117263, 144808, 234526, 469052, 938104, 2697049, 5394098, 10788196, 21576392]

約数ペア:

[(1, 21576392), (2, 10788196), (4, 5394098), (8, 2697049), (23, 938104), (46, 469052), (92, 234526), (149, 144808), (184, 117263), (298, 72404), (596, 36202), (787, 27416), (1192, 18101), (1574, 13708), (3148, 6854), (3427, 6296)]