20579218233

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{409}}^1\times {\mathrm{1453}}^1$

素因数の和:1986

約数の個数: 64

約数和(自身を含む): 33650910720

約数和(自身を除く): 13071692487

約数列:

[1, 3, 7, 17, 21, 51, 97, 119, 291, 357, 409, 679, 1227, 1453, 1649, 2037, 2863, 4359, 4947, 6953, 8589, 10171, 11543, 20859, 24701, 30513, 34629, 39673, 48671, 74103, 119019, 140941, 146013, 172907, 277711, 422823, 518721, 594277, 674441, 833133, 986587, 1782831, 2023323, 2395997, 2959761, 4159939, 4721087, 7187991, 10102709, 12479817, 14163261, 16771979, 30308127, 50315937, 57644869, 70718963, 172934607, 212156889, 403514083, 979962773, 1210542249, 2939888319, 6859739411, 20579218233]

約数ペア:

[(1, 20579218233), (3, 6859739411), (7, 2939888319), (17, 1210542249), (21, 979962773), (51, 403514083), (97, 212156889), (119, 172934607), (291, 70718963), (357, 57644869), (409, 50315937), (679, 30308127), (1227, 16771979), (1453, 14163261), (1649, 12479817), (2037, 10102709), (2863, 7187991), (4359, 4721087), (4947, 4159939), (6953, 2959761), (8589, 2395997), (10171, 2023323), (11543, 1782831), (20859, 986587), (24701, 833133), (30513, 674441), (34629, 594277), (39673, 518721), (48671, 422823), (74103, 277711), (119019, 172907), (140941, 146013)]