21574275

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{16921}}^1$

素因数の和:16951

約数の個数: 24

約数和(自身を含む): 37769904

約数和(自身を除く): 16195629

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 16921, 50763, 84605, 253815, 287657, 423025, 862971, 1269075, 1438285, 4314855, 7191425, 21574275]

約数ペア:

[(1, 21574275), (3, 7191425), (5, 4314855), (15, 1438285), (17, 1269075), (25, 862971), (51, 423025), (75, 287657), (85, 253815), (255, 84605), (425, 50763), (1275, 16921)]