21493592

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{587}}^1$

素因数の和:815

約数の個数: 32

約数和(自身を含む): 42336000

約数和(自身を除く): 20842408

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 199, 398, 587, 796, 1174, 1592, 2348, 4577, 4696, 9154, 13501, 18308, 27002, 36616, 54004, 108008, 116813, 233626, 467252, 934504, 2686699, 5373398, 10746796, 21493592]

約数ペア:

[(1, 21493592), (2, 10746796), (4, 5373398), (8, 2686699), (23, 934504), (46, 467252), (92, 233626), (184, 116813), (199, 108008), (398, 54004), (587, 36616), (796, 27002), (1174, 18308), (1592, 13501), (2348, 9154), (4577, 4696)]