20328476

素因数分解:

$2^2\times 7^1\times {\mathrm{277}}^1\times {\mathrm{2621}}^1$

素因数の和:2909

約数の個数: 24

約数和(自身を含む): 40819296

約数和(自身を除く): 20490820

約数列:

[1, 2, 4, 7, 14, 28, 277, 554, 1108, 1939, 2621, 3878, 5242, 7756, 10484, 18347, 36694, 73388, 726017, 1452034, 2904068, 5082119, 10164238, 20328476]

約数ペア:

[(1, 20328476), (2, 10164238), (4, 5082119), (7, 2904068), (14, 1452034), (28, 726017), (277, 73388), (554, 36694), (1108, 18347), (1939, 10484), (2621, 7756), (3878, 5242)]