21010413

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:237

約数の個数: 32

約数和(自身を含む): 30533760

約数和(自身を除く): 9523347

約数列:

[1, 3, 29, 37, 61, 87, 107, 111, 183, 321, 1073, 1769, 2257, 3103, 3219, 3959, 5307, 6527, 6771, 9309, 11877, 19581, 65453, 114811, 189283, 196359, 241499, 344433, 567849, 724497, 7003471, 21010413]

約数ペア:

[(1, 21010413), (3, 7003471), (29, 724497), (37, 567849), (61, 344433), (87, 241499), (107, 196359), (111, 189283), (183, 114811), (321, 65453), (1073, 19581), (1769, 11877), (2257, 9309), (3103, 6771), (3219, 6527), (3959, 5307)]