20678475

素因数分解:

$3^1\times 5^2\times {\mathrm{293}}^1\times {\mathrm{941}}^1$

素因数の和:1247

約数の個数: 24

約数和(自身を含む): 34341552

約数和(自身を除く): 13663077

約数列:

[1, 3, 5, 15, 25, 75, 293, 879, 941, 1465, 2823, 4395, 4705, 7325, 14115, 21975, 23525, 70575, 275713, 827139, 1378565, 4135695, 6892825, 20678475]

約数ペア:

[(1, 20678475), (3, 6892825), (5, 4135695), (15, 1378565), (25, 827139), (75, 275713), (293, 70575), (879, 23525), (941, 21975), (1465, 14115), (2823, 7325), (4395, 4705)]