19853613

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{229}}^1$

素因数の和:283

約数の個数: 48

約数和(自身を含む): 33672000

約数和(自身を除く): 13818387

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 117, 169, 171, 229, 247, 351, 507, 513, 687, 741, 1521, 2061, 2223, 2977, 3211, 4351, 4563, 6183, 6669, 8931, 9633, 13053, 26793, 28899, 38701, 39159, 56563, 80379, 86697, 116103, 117477, 169689, 348309, 509067, 735319, 1044927, 1527201, 2205957, 6617871, 19853613]

約数ペア:

[(1, 19853613), (3, 6617871), (9, 2205957), (13, 1527201), (19, 1044927), (27, 735319), (39, 509067), (57, 348309), (117, 169689), (169, 117477), (171, 116103), (229, 86697), (247, 80379), (351, 56563), (507, 39159), (513, 38701), (687, 28899), (741, 26793), (1521, 13053), (2061, 9633), (2223, 8931), (2977, 6669), (3211, 6183), (4351, 4563)]