19953971

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{379}}^1$

素因数の和:578

約数の個数: 16

約数和(自身を含む): 22435200

約数和(自身を除く): 2481229

約数列:

[1, 17, 19, 163, 323, 379, 2771, 3097, 6443, 7201, 52649, 61777, 122417, 1050209, 1173763, 19953971]

約数ペア:

[(1, 19953971), (17, 1173763), (19, 1050209), (163, 122417), (323, 61777), (379, 52649), (2771, 7201), (3097, 6443)]