20677744

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{887}}^1$

素因数の和:973

約数の個数: 40

約数和(自身を含む): 42283008

約数和(自身を除く): 21605264

約数列:

[1, 2, 4, 8, 16, 31, 47, 62, 94, 124, 188, 248, 376, 496, 752, 887, 1457, 1774, 2914, 3548, 5828, 7096, 11656, 14192, 23312, 27497, 41689, 54994, 83378, 109988, 166756, 219976, 333512, 439952, 667024, 1292359, 2584718, 5169436, 10338872, 20677744]

約数ペア:

[(1, 20677744), (2, 10338872), (4, 5169436), (8, 2584718), (16, 1292359), (31, 667024), (47, 439952), (62, 333512), (94, 219976), (124, 166756), (188, 109988), (248, 83378), (376, 54994), (496, 41689), (752, 27497), (887, 23312), (1457, 14192), (1774, 11656), (2914, 7096), (3548, 5828)]