21383956

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{2467}}^1$

素因数の和:2679

約数の個数: 24

約数和(自身を含む): 41047776

約数和(自身を除く): 19663820

約数列:

[1, 2, 4, 11, 22, 44, 197, 394, 788, 2167, 2467, 4334, 4934, 8668, 9868, 27137, 54274, 108548, 485999, 971998, 1943996, 5345989, 10691978, 21383956]

約数ペア:

[(1, 21383956), (2, 10691978), (4, 5345989), (11, 1943996), (22, 971998), (44, 485999), (197, 108548), (394, 54274), (788, 27137), (2167, 9868), (2467, 8668), (4334, 4934)]