18866394

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{229}}^1$

素因数の和:459

約数の個数: 48

約数和(自身を含む): 43056000

約数和(自身を除く): 24189606

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 199, 207, 229, 398, 414, 458, 597, 687, 1194, 1374, 1791, 2061, 3582, 4122, 4577, 5267, 9154, 10534, 13731, 15801, 27462, 31602, 41193, 45571, 47403, 82386, 91142, 94806, 136713, 273426, 410139, 820278, 1048133, 2096266, 3144399, 6288798, 9433197, 18866394]

約数ペア:

[(1, 18866394), (2, 9433197), (3, 6288798), (6, 3144399), (9, 2096266), (18, 1048133), (23, 820278), (46, 410139), (69, 273426), (138, 136713), (199, 94806), (207, 91142), (229, 82386), (398, 47403), (414, 45571), (458, 41193), (597, 31602), (687, 27462), (1194, 15801), (1374, 13731), (1791, 10534), (2061, 9154), (3582, 5267), (4122, 4577)]