20859968

素因数分解:

$2^6\times {\mathrm{397}}^1\times {\mathrm{821}}^1$

素因数の和:1230

約数の個数: 28

約数和(自身を含む): 41548812

約数和(自身を除く): 20688844

約数列:

[1, 2, 4, 8, 16, 32, 64, 397, 794, 821, 1588, 1642, 3176, 3284, 6352, 6568, 12704, 13136, 25408, 26272, 52544, 325937, 651874, 1303748, 2607496, 5214992, 10429984, 20859968]

約数ペア:

[(1, 20859968), (2, 10429984), (4, 5214992), (8, 2607496), (16, 1303748), (32, 651874), (64, 325937), (397, 52544), (794, 26272), (821, 25408), (1588, 13136), (1642, 12704), (3176, 6568), (3284, 6352)]