20885728

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{15919}}^1$

素因数の和:15970

約数の個数: 24

約数和(自身を含む): 42124320

約数和(自身を除く): 21238592

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 164, 328, 656, 1312, 15919, 31838, 63676, 127352, 254704, 509408, 652679, 1305358, 2610716, 5221432, 10442864, 20885728]

約数ペア:

[(1, 20885728), (2, 10442864), (4, 5221432), (8, 2610716), (16, 1305358), (32, 652679), (41, 509408), (82, 254704), (164, 127352), (328, 63676), (656, 31838), (1312, 15919)]