19155868

素因数分解:

$2^2\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 34151040

約数和(自身を除く): 14995172

約数列:

[1, 2, 4, 131, 139, 262, 263, 278, 524, 526, 556, 1052, 18209, 34453, 36418, 36557, 68906, 72836, 73114, 137812, 146228, 4788967, 9577934, 19155868]

約数ペア:

[(1, 19155868), (2, 9577934), (4, 4788967), (131, 146228), (139, 137812), (262, 73114), (263, 72836), (278, 68906), (524, 36557), (526, 36418), (556, 34453), (1052, 18209)]