639241974

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{1021}}^1\times {\mathrm{4969}}^1$

素因数の和:6005

約数の個数: 48

約数和(自身を含む): 1584754080

約数和(自身を除く): 945512106

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 1021, 2042, 3063, 4969, 6126, 7147, 9189, 9938, 14294, 14907, 18378, 21441, 29814, 34783, 42882, 44721, 64323, 69566, 89442, 104349, 128646, 208698, 313047, 626094, 5073349, 10146698, 15220047, 30440094, 35513443, 45660141, 71026886, 91320282, 106540329, 213080658, 319620987, 639241974]

約数ペア:

[(1, 639241974), (2, 319620987), (3, 213080658), (6, 106540329), (7, 91320282), (9, 71026886), (14, 45660141), (18, 35513443), (21, 30440094), (42, 15220047), (63, 10146698), (126, 5073349), (1021, 626094), (2042, 313047), (3063, 208698), (4969, 128646), (6126, 104349), (7147, 89442), (9189, 69566), (9938, 64323), (14294, 44721), (14907, 42882), (18378, 34783), (21441, 29814)]