19997625

素因数分解:

$3^1\times 5^3\times {\mathrm{53327}}^1$

素因数の和:53345

約数の個数: 16

約数和(自身を含む): 33276672

約数和(自身を除く): 13279047

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 53327, 159981, 266635, 799905, 1333175, 3999525, 6665875, 19997625]

約数ペア:

[(1, 19997625), (3, 6665875), (5, 3999525), (15, 1333175), (25, 799905), (75, 266635), (125, 159981), (375, 53327)]