20964489

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1873}}^1$

素因数の和:1937

約数の個数: 32

約数和(自身を含む): 35261184

約数和(自身を除く): 14296695

約数列:

[1, 3, 7, 13, 21, 39, 41, 91, 123, 273, 287, 533, 861, 1599, 1873, 3731, 5619, 11193, 13111, 24349, 39333, 73047, 76793, 170443, 230379, 511329, 537551, 998309, 1612653, 2994927, 6988163, 20964489]

約数ペア:

[(1, 20964489), (3, 6988163), (7, 2994927), (13, 1612653), (21, 998309), (39, 537551), (41, 511329), (91, 230379), (123, 170443), (273, 76793), (287, 73047), (533, 39333), (861, 24349), (1599, 13111), (1873, 11193), (3731, 5619)]