55140729

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{347}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 91404288

約数和(自身を除く): 36263559

約数列:

[1, 3, 7, 21, 23, 47, 49, 69, 141, 147, 161, 329, 347, 483, 987, 1041, 1081, 1127, 2303, 2429, 3243, 3381, 6909, 7287, 7567, 7981, 16309, 17003, 22701, 23943, 48927, 51009, 52969, 55867, 114163, 158907, 167601, 342489, 375107, 391069, 799141, 1125321, 1173207, 2397423, 2625749, 7877247, 18380243, 55140729]

約数ペア:

[(1, 55140729), (3, 18380243), (7, 7877247), (21, 2625749), (23, 2397423), (47, 1173207), (49, 1125321), (69, 799141), (141, 391069), (147, 375107), (161, 342489), (329, 167601), (347, 158907), (483, 114163), (987, 55867), (1041, 52969), (1081, 51009), (1127, 48927), (2303, 23943), (2429, 22701), (3243, 17003), (3381, 16309), (6909, 7981), (7287, 7567)]