3987407487

素因数分解:

$3^1\times 7^2\times {\mathrm{27125221}}^1$

素因数の和:27125238

約数の個数: 12

約数和(自身を含む): 6184550616

約数和(自身を除く): 2197143129

約数列:

[1, 3, 7, 21, 49, 147, 27125221, 81375663, 189876547, 569629641, 1329135829, 3987407487]

約数ペア:

[(1, 3987407487), (3, 1329135829), (7, 569629641), (21, 189876547), (49, 81375663), (147, 27125221)]