42781947

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{263}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 63748608

約数和(自身を除く): 20966661

約数列:

[1, 3, 13, 39, 43, 97, 129, 263, 291, 559, 789, 1261, 1677, 3419, 3783, 4171, 10257, 11309, 12513, 25511, 33927, 54223, 76533, 147017, 162669, 331643, 441051, 994929, 1096973, 3290919, 14260649, 42781947]

約数ペア:

[(1, 42781947), (3, 14260649), (13, 3290919), (39, 1096973), (43, 994929), (97, 441051), (129, 331643), (263, 162669), (291, 147017), (559, 76533), (789, 54223), (1261, 33927), (1677, 25511), (3419, 12513), (3783, 11309), (4171, 10257)]