21994892

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{827}}^1$

素因数の和:1001

約数の個数: 24

約数和(自身を含む): 39528720

約数和(自身を除く): 17533828

約数列:

[1, 2, 4, 61, 109, 122, 218, 244, 436, 827, 1654, 3308, 6649, 13298, 26596, 50447, 90143, 100894, 180286, 201788, 360572, 5498723, 10997446, 21994892]

約数ペア:

[(1, 21994892), (2, 10997446), (4, 5498723), (61, 360572), (109, 201788), (122, 180286), (218, 100894), (244, 90143), (436, 50447), (827, 26596), (1654, 13298), (3308, 6649)]