72240903

素因数分解:

$3^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2963}}^1$

素因数の和:3025

約数の個数: 40

約数和(自身を含む): 126242688

約数和(自身を除く): 54001785

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 81, 129, 189, 301, 387, 567, 903, 1161, 2709, 2963, 3483, 8127, 8889, 20741, 24381, 26667, 62223, 80001, 127409, 186669, 240003, 382227, 560007, 891863, 1146681, 1680021, 2675589, 3440043, 8026767, 10320129, 24080301, 72240903]

約数ペア:

[(1, 72240903), (3, 24080301), (7, 10320129), (9, 8026767), (21, 3440043), (27, 2675589), (43, 1680021), (63, 1146681), (81, 891863), (129, 560007), (189, 382227), (301, 240003), (387, 186669), (567, 127409), (903, 80001), (1161, 62223), (2709, 26667), (2963, 24381), (3483, 20741), (8127, 8889)]