21516043521

素因数分解:

$3^1\times 7^2\times {\mathrm{163}}^1\times {\mathrm{443}}^1\times {\mathrm{2027}}^1$

素因数の和:2650

約数の個数: 48

約数和(自身を含む): 33668953344

約数和(自身を除く): 12152909823

約数列:

[1, 3, 7, 21, 49, 147, 163, 443, 489, 1141, 1329, 2027, 3101, 3423, 6081, 7987, 9303, 14189, 21707, 23961, 42567, 65121, 72209, 99323, 216627, 297969, 330401, 505463, 897961, 991203, 1516389, 2312807, 2693883, 3538241, 6285727, 6938421, 10614723, 16189649, 18857181, 44000089, 48568947, 132000267, 146367643, 439102929, 1024573501, 3073720503, 7172014507, 21516043521]

約数ペア:

[(1, 21516043521), (3, 7172014507), (7, 3073720503), (21, 1024573501), (49, 439102929), (147, 146367643), (163, 132000267), (443, 48568947), (489, 44000089), (1141, 18857181), (1329, 16189649), (2027, 10614723), (3101, 6938421), (3423, 6285727), (6081, 3538241), (7987, 2693883), (9303, 2312807), (14189, 1516389), (21707, 991203), (23961, 897961), (42567, 505463), (65121, 330401), (72209, 297969), (99323, 216627)]