20813808

素因数分解:

$2^4\times 3^1\times {\mathrm{199}}^1\times {\mathrm{2179}}^1$

素因数の和:2389

約数の個数: 40

約数和(自身を含む): 54064000

約数和(自身を除く): 33250192

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 199, 398, 597, 796, 1194, 1592, 2179, 2388, 3184, 4358, 4776, 6537, 8716, 9552, 13074, 17432, 26148, 34864, 52296, 104592, 433621, 867242, 1300863, 1734484, 2601726, 3468968, 5203452, 6937936, 10406904, 20813808]

約数ペア:

[(1, 20813808), (2, 10406904), (3, 6937936), (4, 5203452), (6, 3468968), (8, 2601726), (12, 1734484), (16, 1300863), (24, 867242), (48, 433621), (199, 104592), (398, 52296), (597, 34864), (796, 26148), (1194, 17432), (1592, 13074), (2179, 9552), (2388, 8716), (3184, 6537), (4358, 4776)]