20686528

素因数分解:

$2^6\times {\mathrm{263}}^1\times {\mathrm{1229}}^1$

素因数の和:1504

約数の個数: 28

約数和(自身を含む): 41239440

約数和(自身を除く): 20552912

約数列:

[1, 2, 4, 8, 16, 32, 64, 263, 526, 1052, 1229, 2104, 2458, 4208, 4916, 8416, 9832, 16832, 19664, 39328, 78656, 323227, 646454, 1292908, 2585816, 5171632, 10343264, 20686528]

約数ペア:

[(1, 20686528), (2, 10343264), (4, 5171632), (8, 2585816), (16, 1292908), (32, 646454), (64, 323227), (263, 78656), (526, 39328), (1052, 19664), (1229, 16832), (2104, 9832), (2458, 8416), (4208, 4916)]