18771272

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{907}}^1$

素因数の和:1125

約数の個数: 32

約数和(自身を含む): 38136000

約数和(自身を除く): 19364728

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 199, 398, 796, 907, 1592, 1814, 2587, 3628, 5174, 7256, 10348, 11791, 20696, 23582, 47164, 94328, 180493, 360986, 721972, 1443944, 2346409, 4692818, 9385636, 18771272]

約数ペア:

[(1, 18771272), (2, 9385636), (4, 4692818), (8, 2346409), (13, 1443944), (26, 721972), (52, 360986), (104, 180493), (199, 94328), (398, 47164), (796, 23582), (907, 20696), (1592, 11791), (1814, 10348), (2587, 7256), (3628, 5174)]