15661699221

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{349}}^1\times {\mathrm{2393}}^1$

素因数の和:2818

約数の個数: 64

約数和(自身を含む): 25740288000

約数和(自身を除く): 10078588779

約数列:

[1, 3, 7, 19, 21, 47, 57, 133, 141, 329, 349, 399, 893, 987, 1047, 2393, 2443, 2679, 6251, 6631, 7179, 7329, 16403, 16751, 18753, 19893, 45467, 46417, 49209, 50253, 112471, 114821, 136401, 139251, 311657, 318269, 337413, 344463, 787297, 835157, 934971, 954807, 2136949, 2181599, 2361891, 2505471, 5846099, 6410847, 6544797, 14958643, 15867983, 17538297, 39252379, 44875929, 47603949, 111075881, 117757137, 274766653, 333227643, 745795201, 824299959, 2237385603, 5220566407, 15661699221]

約数ペア:

[(1, 15661699221), (3, 5220566407), (7, 2237385603), (19, 824299959), (21, 745795201), (47, 333227643), (57, 274766653), (133, 117757137), (141, 111075881), (329, 47603949), (349, 44875929), (399, 39252379), (893, 17538297), (987, 15867983), (1047, 14958643), (2393, 6544797), (2443, 6410847), (2679, 5846099), (6251, 2505471), (6631, 2361891), (7179, 2181599), (7329, 2136949), (16403, 954807), (16751, 934971), (18753, 835157), (19893, 787297), (45467, 344463), (46417, 337413), (49209, 318269), (50253, 311657), (112471, 139251), (114821, 136401)]