19837755

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{887}}^1$

素因数の和:976

約数の個数: 48

約数和(自身を含む): 39896064

約数和(自身を除く): 20058309

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 71, 105, 213, 315, 355, 497, 639, 887, 1065, 1491, 2485, 2661, 3195, 4435, 4473, 6209, 7455, 7983, 13305, 18627, 22365, 31045, 39915, 55881, 62977, 93135, 188931, 279405, 314885, 440839, 566793, 944655, 1322517, 2204195, 2833965, 3967551, 6612585, 19837755]

約数ペア:

[(1, 19837755), (3, 6612585), (5, 3967551), (7, 2833965), (9, 2204195), (15, 1322517), (21, 944655), (35, 566793), (45, 440839), (63, 314885), (71, 279405), (105, 188931), (213, 93135), (315, 62977), (355, 55881), (497, 39915), (639, 31045), (887, 22365), (1065, 18627), (1491, 13305), (2485, 7983), (2661, 7455), (3195, 6209), (4435, 4473)]