20181991683

素因数分解:

$3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{907}}^1\times {\mathrm{9721}}^1$

素因数の和:10747

約数の個数: 32

約数和(自身を含む): 31073067520

約数和(自身を除く): 10891075837

約数列:

[1, 3, 7, 21, 109, 327, 763, 907, 2289, 2721, 6349, 9721, 19047, 29163, 68047, 98863, 204141, 296589, 692041, 1059589, 2076123, 3178767, 7417123, 8816947, 22251369, 26450841, 61718629, 185155887, 961047223, 2883141669, 6727330561, 20181991683]

約数ペア:

[(1, 20181991683), (3, 6727330561), (7, 2883141669), (21, 961047223), (109, 185155887), (327, 61718629), (763, 26450841), (907, 22251369), (2289, 8816947), (2721, 7417123), (6349, 3178767), (9721, 2076123), (19047, 1059589), (29163, 692041), (68047, 296589), (98863, 204141)]