21627825

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{16963}}^1$

素因数の和:16993

約数の個数: 24

約数和(自身を含む): 37863648

約数和(自身を除く): 16235823

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 16963, 50889, 84815, 254445, 288371, 424075, 865113, 1272225, 1441855, 4325565, 7209275, 21627825]

約数ペア:

[(1, 21627825), (3, 7209275), (5, 4325565), (15, 1441855), (17, 1272225), (25, 865113), (51, 424075), (75, 288371), (85, 254445), (255, 84815), (425, 50889), (1275, 16963)]