21144376

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{997}}^1$

素因数の和:1255

約数の個数: 32

約数和(自身を含む): 43472880

約数和(自身を除く): 22328504

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 241, 482, 964, 997, 1928, 1994, 2651, 3988, 5302, 7976, 10604, 10967, 21208, 21934, 43868, 87736, 240277, 480554, 961108, 1922216, 2643047, 5286094, 10572188, 21144376]

約数ペア:

[(1, 21144376), (2, 10572188), (4, 5286094), (8, 2643047), (11, 1922216), (22, 961108), (44, 480554), (88, 240277), (241, 87736), (482, 43868), (964, 21934), (997, 21208), (1928, 10967), (1994, 10604), (2651, 7976), (3988, 5302)]