1997799867

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{27647}}^1$

素因数の和:27728

約数の個数: 48

約数和(自身を含む): 3496476672

約数和(自身を除く): 1498676805

約数列:

[1, 3, 7, 9, 21, 31, 37, 63, 93, 111, 217, 259, 279, 333, 651, 777, 1147, 1953, 2331, 3441, 8029, 10323, 24087, 27647, 72261, 82941, 193529, 248823, 580587, 857057, 1022939, 1741761, 2571171, 3068817, 5999399, 7160573, 7713513, 9206451, 17998197, 21481719, 31711109, 53994591, 64445157, 95133327, 221977763, 285399981, 665933289, 1997799867]

約数ペア:

[(1, 1997799867), (3, 665933289), (7, 285399981), (9, 221977763), (21, 95133327), (31, 64445157), (37, 53994591), (63, 31711109), (93, 21481719), (111, 17998197), (217, 9206451), (259, 7713513), (279, 7160573), (333, 5999399), (651, 3068817), (777, 2571171), (1147, 1741761), (1953, 1022939), (2331, 857057), (3441, 580587), (8029, 248823), (10323, 193529), (24087, 82941), (27647, 72261)]