21081444489

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{11483}}^1$

素因数の和:11707

約数の個数: 72

約数和(自身を含む): 37170124992

約数和(自身を除く): 16088680503

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 147, 161, 181, 207, 441, 483, 543, 1127, 1267, 1449, 1629, 3381, 3801, 4163, 8869, 10143, 11403, 11483, 12489, 26607, 29141, 34449, 37467, 79821, 80381, 87423, 103347, 203987, 241143, 262269, 264109, 562667, 611961, 723429, 792327, 1688001, 1835883, 1848763, 2078423, 2376981, 5064003, 5546289, 6235269, 12941341, 14548961, 16638867, 18705807, 38824023, 43646883, 47803729, 101842727, 116472069, 130940649, 143411187, 305528181, 334626103, 430233561, 916584543, 1003878309, 2342382721, 3011634927, 7027148163, 21081444489]

約数ペア:

[(1, 21081444489), (3, 7027148163), (7, 3011634927), (9, 2342382721), (21, 1003878309), (23, 916584543), (49, 430233561), (63, 334626103), (69, 305528181), (147, 143411187), (161, 130940649), (181, 116472069), (207, 101842727), (441, 47803729), (483, 43646883), (543, 38824023), (1127, 18705807), (1267, 16638867), (1449, 14548961), (1629, 12941341), (3381, 6235269), (3801, 5546289), (4163, 5064003), (8869, 2376981), (10143, 2078423), (11403, 1848763), (11483, 1835883), (12489, 1688001), (26607, 792327), (29141, 723429), (34449, 611961), (37467, 562667), (79821, 264109), (80381, 262269), (87423, 241143), (103347, 203987)]