21587256

素因数分解:

$2^3\times 3^3\times {\mathrm{139}}^1\times {\mathrm{719}}^1$

素因数の和:873

約数の個数: 64

約数和(自身を含む): 60480000

約数和(自身を除く): 38892744

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 139, 216, 278, 417, 556, 719, 834, 1112, 1251, 1438, 1668, 2157, 2502, 2876, 3336, 3753, 4314, 5004, 5752, 6471, 7506, 8628, 10008, 12942, 15012, 17256, 19413, 25884, 30024, 38826, 51768, 77652, 99941, 155304, 199882, 299823, 399764, 599646, 799528, 899469, 1199292, 1798938, 2398584, 2698407, 3597876, 5396814, 7195752, 10793628, 21587256]

約数ペア:

[(1, 21587256), (2, 10793628), (3, 7195752), (4, 5396814), (6, 3597876), (8, 2698407), (9, 2398584), (12, 1798938), (18, 1199292), (24, 899469), (27, 799528), (36, 599646), (54, 399764), (72, 299823), (108, 199882), (139, 155304), (216, 99941), (278, 77652), (417, 51768), (556, 38826), (719, 30024), (834, 25884), (1112, 19413), (1251, 17256), (1438, 15012), (1668, 12942), (2157, 10008), (2502, 8628), (2876, 7506), (3336, 6471), (3753, 5752), (4314, 5004)]