20389239

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{67}}^1$

素因数の和:126

約数の個数: 60

約数和(自身を含む): 35363944

約数和(自身を除く): 14974705

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 67, 81, 117, 153, 201, 221, 289, 351, 459, 603, 663, 867, 871, 1053, 1139, 1377, 1809, 1989, 2601, 2613, 3417, 3757, 5427, 5967, 7803, 7839, 10251, 11271, 14807, 17901, 19363, 23409, 23517, 30753, 33813, 44421, 58089, 70551, 92259, 101439, 133263, 174267, 251719, 304317, 399789, 522801, 755157, 1199367, 1568403, 2265471, 6796413, 20389239]

約数ペア:

[(1, 20389239), (3, 6796413), (9, 2265471), (13, 1568403), (17, 1199367), (27, 755157), (39, 522801), (51, 399789), (67, 304317), (81, 251719), (117, 174267), (153, 133263), (201, 101439), (221, 92259), (289, 70551), (351, 58089), (459, 44421), (603, 33813), (663, 30753), (867, 23517), (871, 23409), (1053, 19363), (1139, 17901), (1377, 14807), (1809, 11271), (1989, 10251), (2601, 7839), (2613, 7803), (3417, 5967), (3757, 5427)]