21809286

素因数分解:

$2^1\times 3^2\times {\mathrm{97}}^1\times {\mathrm{12491}}^1$

素因数の和:12596

約数の個数: 24

約数和(自身を含む): 47744424

約数和(自身を除く): 25935138

約数列:

[1, 2, 3, 6, 9, 18, 97, 194, 291, 582, 873, 1746, 12491, 24982, 37473, 74946, 112419, 224838, 1211627, 2423254, 3634881, 7269762, 10904643, 21809286]

約数ペア:

[(1, 21809286), (2, 10904643), (3, 7269762), (6, 3634881), (9, 2423254), (18, 1211627), (97, 224838), (194, 112419), (291, 74946), (582, 37473), (873, 24982), (1746, 12491)]