21014900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{6779}}^1$

素因数の和:6824

約数の個数: 36

約数和(自身を含む): 47080320

約数和(自身を除く): 26065420

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 6779, 13558, 27116, 33895, 67790, 135580, 169475, 210149, 338950, 420298, 677900, 840596, 1050745, 2101490, 4202980, 5253725, 10507450, 21014900]

約数ペア:

[(1, 21014900), (2, 10507450), (4, 5253725), (5, 4202980), (10, 2101490), (20, 1050745), (25, 840596), (31, 677900), (50, 420298), (62, 338950), (100, 210149), (124, 169475), (155, 135580), (310, 67790), (620, 33895), (775, 27116), (1550, 13558), (3100, 6779)]