20791133991

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{463}}^1\times {\mathrm{2003}}^1$

素因数の和:2572

約数の個数: 48

約数和(自身を含む): 31332427776

約数和(自身を除く): 10541293785

約数列:

[1, 3, 9, 47, 53, 141, 159, 423, 463, 477, 1389, 2003, 2491, 4167, 6009, 7473, 18027, 21761, 22419, 24539, 65283, 73617, 94141, 106159, 195849, 220851, 282423, 318477, 847269, 927389, 955431, 1153333, 2782167, 3459999, 4989473, 8346501, 10379997, 14968419, 43587283, 44905257, 49151617, 130761849, 147454851, 392285547, 442364553, 2310125999, 6930377997, 20791133991]

約数ペア:

[(1, 20791133991), (3, 6930377997), (9, 2310125999), (47, 442364553), (53, 392285547), (141, 147454851), (159, 130761849), (423, 49151617), (463, 44905257), (477, 43587283), (1389, 14968419), (2003, 10379997), (2491, 8346501), (4167, 4989473), (6009, 3459999), (7473, 2782167), (18027, 1153333), (21761, 955431), (22419, 927389), (24539, 847269), (65283, 318477), (73617, 282423), (94141, 220851), (106159, 195849)]