20987796

素因数分解:

$2^2\times 3^1\times {\mathrm{1087}}^1\times {\mathrm{1609}}^1$

素因数の和:2703

約数の個数: 24

約数和(自身を含む): 49047040

約数和(自身を除く): 28059244

約数列:

[1, 2, 3, 4, 6, 12, 1087, 1609, 2174, 3218, 3261, 4348, 4827, 6436, 6522, 9654, 13044, 19308, 1748983, 3497966, 5246949, 6995932, 10493898, 20987796]

約数ペア:

[(1, 20987796), (2, 10493898), (3, 6995932), (4, 5246949), (6, 3497966), (12, 1748983), (1087, 19308), (1609, 13044), (2174, 9654), (3218, 6522), (3261, 6436), (4348, 4827)]