19665904

素因数分解:

$2^4\times {\mathrm{31}}^2\times {\mathrm{1279}}^1$

素因数の和:1349

約数の個数: 30

約数和(自身を含む): 39402240

約数和(自身を除く): 19736336

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 961, 1279, 1922, 2558, 3844, 5116, 7688, 10232, 15376, 20464, 39649, 79298, 158596, 317192, 634384, 1229119, 2458238, 4916476, 9832952, 19665904]

約数ペア:

[(1, 19665904), (2, 9832952), (4, 4916476), (8, 2458238), (16, 1229119), (31, 634384), (62, 317192), (124, 158596), (248, 79298), (496, 39649), (961, 20464), (1279, 15376), (1922, 10232), (2558, 7688), (3844, 5116)]