20120552949

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{690787}}^1$

素因数の和:690889

約数の個数: 32

約数和(自身を含む): 32715719680

約数和(自身を除く): 12595166731

約数列:

[1, 3, 7, 19, 21, 57, 73, 133, 219, 399, 511, 1387, 1533, 4161, 9709, 29127, 690787, 2072361, 4835509, 13124953, 14506527, 39374859, 50427451, 91874671, 151282353, 275624013, 352992157, 958121569, 1058976471, 2874364707, 6706850983, 20120552949]

約数ペア:

[(1, 20120552949), (3, 6706850983), (7, 2874364707), (19, 1058976471), (21, 958121569), (57, 352992157), (73, 275624013), (133, 151282353), (219, 91874671), (399, 50427451), (511, 39374859), (1387, 14506527), (1533, 13124953), (4161, 4835509), (9709, 2072361), (29127, 690787)]