20827976

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{739}}^1$

素因数の和:1029

約数の個数: 32

約数和(自身を含む): 42268800

約数和(自身を除く): 21440824

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 271, 542, 739, 1084, 1478, 2168, 2956, 3523, 5912, 7046, 9607, 14092, 19214, 28184, 38428, 76856, 200269, 400538, 801076, 1602152, 2603497, 5206994, 10413988, 20827976]

約数ペア:

[(1, 20827976), (2, 10413988), (4, 5206994), (8, 2603497), (13, 1602152), (26, 801076), (52, 400538), (104, 200269), (271, 76856), (542, 38428), (739, 28184), (1084, 19214), (1478, 14092), (2168, 9607), (2956, 7046), (3523, 5912)]