19519451

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2689}}^1$

素因数の和:2774

約数の個数: 16

約数和(自身を含む): 24016320

約数和(自身を除く): 4496869

約数列:

[1, 7, 17, 61, 119, 427, 1037, 2689, 7259, 18823, 45713, 164029, 319991, 1148203, 2788493, 19519451]

約数ペア:

[(1, 19519451), (7, 2788493), (17, 1148203), (61, 319991), (119, 164029), (427, 45713), (1037, 18823), (2689, 7259)]