18663016

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{617}}^1$

素因数の和:841

約数の個数: 32

約数和(自身を含む): 37080000

約数和(自身を除く): 18416984

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 199, 398, 617, 796, 1234, 1592, 2468, 3781, 4936, 7562, 11723, 15124, 23446, 30248, 46892, 93784, 122783, 245566, 491132, 982264, 2332877, 4665754, 9331508, 18663016]

約数ペア:

[(1, 18663016), (2, 9331508), (4, 4665754), (8, 2332877), (19, 982264), (38, 491132), (76, 245566), (152, 122783), (199, 93784), (398, 46892), (617, 30248), (796, 23446), (1234, 15124), (1592, 11723), (2468, 7562), (3781, 4936)]