19857418

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{743}}^1$

素因数の和:858

約数の個数: 32

約数和(自身を含む): 35997696

約数和(自身を除く): 16140278

約数列:

[1, 2, 7, 14, 23, 46, 83, 161, 166, 322, 581, 743, 1162, 1486, 1909, 3818, 5201, 10402, 13363, 17089, 26726, 34178, 61669, 119623, 123338, 239246, 431683, 863366, 1418387, 2836774, 9928709, 19857418]

約数ペア:

[(1, 19857418), (2, 9928709), (7, 2836774), (14, 1418387), (23, 863366), (46, 431683), (83, 239246), (161, 123338), (166, 119623), (322, 61669), (581, 34178), (743, 26726), (1162, 17089), (1486, 13363), (1909, 10402), (3818, 5201)]