20952075

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{16433}}^1$

素因数の和:16463

約数の個数: 24

約数和(自身を含む): 36680688

約数和(自身を除く): 15728613

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 16433, 49299, 82165, 246495, 279361, 410825, 838083, 1232475, 1396805, 4190415, 6984025, 20952075]

約数ペア:

[(1, 20952075), (3, 6984025), (5, 4190415), (15, 1396805), (17, 1232475), (25, 838083), (51, 410825), (75, 279361), (85, 246495), (255, 82165), (425, 49299), (1275, 16433)]