19734407

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 27578880

約数和(自身を除く): 7844473

約数列:

[1, 7, 11, 19, 41, 47, 49, 77, 133, 209, 287, 329, 451, 517, 539, 779, 893, 931, 1463, 1927, 2009, 2303, 3157, 3619, 5453, 6251, 8569, 9823, 10241, 13489, 21197, 22099, 25333, 36613, 38171, 43757, 59983, 68761, 94423, 148379, 256291, 402743, 419881, 481327, 1038653, 1794037, 2819201, 19734407]

約数ペア:

[(1, 19734407), (7, 2819201), (11, 1794037), (19, 1038653), (41, 481327), (47, 419881), (49, 402743), (77, 256291), (133, 148379), (209, 94423), (287, 68761), (329, 59983), (451, 43757), (517, 38171), (539, 36613), (779, 25333), (893, 22099), (931, 21197), (1463, 13489), (1927, 10241), (2009, 9823), (2303, 8569), (3157, 6251), (3619, 5453)]