21380804571

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1\times {\mathrm{2609}}^1$

素因数の和:2908

約数の個数: 64

約数和(自身を含む): 34276608000

約数和(自身を除く): 12895803429

約数列:

[1, 3, 7, 21, 37, 53, 111, 159, 199, 259, 371, 597, 777, 1113, 1393, 1961, 2609, 4179, 5883, 7363, 7827, 10547, 13727, 18263, 22089, 31641, 41181, 51541, 54789, 73829, 96533, 138277, 154623, 221487, 289599, 390239, 414831, 519191, 675731, 967939, 1170717, 1557573, 2027193, 2731673, 2903817, 3634337, 5116249, 8195019, 10903011, 15348747, 19210067, 27517123, 35813743, 57630201, 82551369, 107441229, 134470469, 192619861, 403411407, 577859583, 1018133551, 3054400653, 7126934857, 21380804571]

約数ペア:

[(1, 21380804571), (3, 7126934857), (7, 3054400653), (21, 1018133551), (37, 577859583), (53, 403411407), (111, 192619861), (159, 134470469), (199, 107441229), (259, 82551369), (371, 57630201), (597, 35813743), (777, 27517123), (1113, 19210067), (1393, 15348747), (1961, 10903011), (2609, 8195019), (4179, 5116249), (5883, 3634337), (7363, 2903817), (7827, 2731673), (10547, 2027193), (13727, 1557573), (18263, 1170717), (22089, 967939), (31641, 675731), (41181, 519191), (51541, 414831), (54789, 390239), (73829, 289599), (96533, 221487), (138277, 154623)]