21463772

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 42674688

約数和(自身を除く): 21210916

約数列:

[1, 2, 4, 11, 22, 44, 47, 94, 97, 107, 188, 194, 214, 388, 428, 517, 1034, 1067, 1177, 2068, 2134, 2354, 4268, 4559, 4708, 5029, 9118, 10058, 10379, 18236, 20116, 20758, 41516, 50149, 55319, 100298, 110638, 114169, 200596, 221276, 228338, 456676, 487813, 975626, 1951252, 5365943, 10731886, 21463772]

約数ペア:

[(1, 21463772), (2, 10731886), (4, 5365943), (11, 1951252), (22, 975626), (44, 487813), (47, 456676), (94, 228338), (97, 221276), (107, 200596), (188, 114169), (194, 110638), (214, 100298), (388, 55319), (428, 50149), (517, 41516), (1034, 20758), (1067, 20116), (1177, 18236), (2068, 10379), (2134, 10058), (2354, 9118), (4268, 5029), (4559, 4708)]