20090109

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{22397}}^1$

素因数の和:22436

約数の個数: 16

約数和(自身を含む): 30102912

約数和(自身を除く): 10012803

約数列:

[1, 3, 13, 23, 39, 69, 299, 897, 22397, 67191, 291161, 515131, 873483, 1545393, 6696703, 20090109]

約数ペア:

[(1, 20090109), (3, 6696703), (13, 1545393), (23, 873483), (39, 515131), (69, 291161), (299, 67191), (897, 22397)]