21493950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{8429}}^1$

素因数の和:8461

約数の個数: 48

約数和(自身を含む): 56447280

約数和(自身を除く): 34953330

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 25, 30, 34, 50, 51, 75, 85, 102, 150, 170, 255, 425, 510, 850, 1275, 2550, 8429, 16858, 25287, 42145, 50574, 84290, 126435, 143293, 210725, 252870, 286586, 421450, 429879, 632175, 716465, 859758, 1264350, 1432930, 2149395, 3582325, 4298790, 7164650, 10746975, 21493950]

約数ペア:

[(1, 21493950), (2, 10746975), (3, 7164650), (5, 4298790), (6, 3582325), (10, 2149395), (15, 1432930), (17, 1264350), (25, 859758), (30, 716465), (34, 632175), (50, 429879), (51, 421450), (75, 286586), (85, 252870), (102, 210725), (150, 143293), (170, 126435), (255, 84290), (425, 50574), (510, 42145), (850, 25287), (1275, 16858), (2550, 8429)]