21751696

素因数分解:

$2^4\times {\mathrm{241}}^1\times {\mathrm{5641}}^1$

素因数の和:5890

約数の個数: 20

約数和(自身を含む): 42326284

約数和(自身を除く): 20574588

約数列:

[1, 2, 4, 8, 16, 241, 482, 964, 1928, 3856, 5641, 11282, 22564, 45128, 90256, 1359481, 2718962, 5437924, 10875848, 21751696]

約数ペア:

[(1, 21751696), (2, 10875848), (4, 5437924), (8, 2718962), (16, 1359481), (241, 90256), (482, 45128), (964, 22564), (1928, 11282), (3856, 5641)]