20886408

素因数分解:

$2^3\times 3^2\times {\mathrm{263}}^1\times {\mathrm{1103}}^1$

素因数の和:1378

約数の個数: 48

約数和(自身を含む): 56833920

約数和(自身を除く): 35947512

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 263, 526, 789, 1052, 1103, 1578, 2104, 2206, 2367, 3156, 3309, 4412, 4734, 6312, 6618, 8824, 9468, 9927, 13236, 18936, 19854, 26472, 39708, 79416, 290089, 580178, 870267, 1160356, 1740534, 2320712, 2610801, 3481068, 5221602, 6962136, 10443204, 20886408]

約数ペア:

[(1, 20886408), (2, 10443204), (3, 6962136), (4, 5221602), (6, 3481068), (8, 2610801), (9, 2320712), (12, 1740534), (18, 1160356), (24, 870267), (36, 580178), (72, 290089), (263, 79416), (526, 39708), (789, 26472), (1052, 19854), (1103, 18936), (1578, 13236), (2104, 9927), (2206, 9468), (2367, 8824), (3156, 6618), (3309, 6312), (4412, 4734)]