20865568

素因数分解:

$2^5\times {\mathrm{139}}^1\times {\mathrm{4691}}^1$

素因数の和:4840

約数の個数: 24

約数和(自身を含む): 41383440

約数和(自身を除く): 20517872

約数列:

[1, 2, 4, 8, 16, 32, 139, 278, 556, 1112, 2224, 4448, 4691, 9382, 18764, 37528, 75056, 150112, 652049, 1304098, 2608196, 5216392, 10432784, 20865568]

約数ペア:

[(1, 20865568), (2, 10432784), (4, 5216392), (8, 2608196), (16, 1304098), (32, 652049), (139, 150112), (278, 75056), (556, 37528), (1112, 18764), (2224, 9382), (4448, 4691)]