20565862497

素因数分解:

$3^5\times {\mathrm{97}}^1\times {\mathrm{491}}^1\times {\mathrm{1777}}^1$

素因数の和:2380

約数の個数: 48

約数和(自身を含む): 31205009472

約数和(自身を除く): 10639146975

約数列:

[1, 3, 9, 27, 81, 97, 243, 291, 491, 873, 1473, 1777, 2619, 4419, 5331, 7857, 13257, 15993, 23571, 39771, 47627, 47979, 119313, 142881, 143937, 172369, 428643, 431811, 517107, 872507, 1285929, 1551321, 2617521, 3857787, 4653963, 7852563, 11573361, 13961889, 23557689, 41885667, 70673067, 84633179, 212019201, 253899537, 761698611, 2285095833, 6855287499, 20565862497]

約数ペア:

[(1, 20565862497), (3, 6855287499), (9, 2285095833), (27, 761698611), (81, 253899537), (97, 212019201), (243, 84633179), (291, 70673067), (491, 41885667), (873, 23557689), (1473, 13961889), (1777, 11573361), (2619, 7852563), (4419, 4653963), (5331, 3857787), (7857, 2617521), (13257, 1551321), (15993, 1285929), (23571, 872507), (39771, 517107), (47627, 431811), (47979, 428643), (119313, 172369), (142881, 143937)]