393487689

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{241}}^1\times {\mathrm{383}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 635627520

約数和(自身を除く): 242139831

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 203, 241, 383, 609, 723, 1149, 1421, 1687, 2681, 4263, 5061, 6989, 8043, 11107, 11809, 18767, 20967, 33321, 35427, 48923, 56301, 77749, 92303, 146769, 233247, 276909, 342461, 544243, 646121, 1027383, 1632729, 1938363, 2676787, 4522847, 8030361, 13568541, 18737509, 56212527, 131162563, 393487689]

約数ペア:

[(1, 393487689), (3, 131162563), (7, 56212527), (21, 18737509), (29, 13568541), (49, 8030361), (87, 4522847), (147, 2676787), (203, 1938363), (241, 1632729), (383, 1027383), (609, 646121), (723, 544243), (1149, 342461), (1421, 276909), (1687, 233247), (2681, 146769), (4263, 92303), (5061, 77749), (6989, 56301), (8043, 48923), (11107, 35427), (11809, 33321), (18767, 20967)]