31369947

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{12553}}^1$

素因数の和:12587

約数の個数: 24

約数和(自身を含む): 51521616

約数和(自身を除く): 20151669

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 12553, 37659, 87871, 213401, 263613, 615097, 640203, 1493807, 1845291, 4481421, 10456649, 31369947]

約数ペア:

[(1, 31369947), (3, 10456649), (7, 4481421), (17, 1845291), (21, 1493807), (49, 640203), (51, 615097), (119, 263613), (147, 213401), (357, 87871), (833, 37659), (2499, 12553)]