20109817

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:313

約数の個数: 24

約数和(自身を含む): 25297920

約数和(自身を除く): 5188103

約数列:

[1, 7, 13, 89, 91, 169, 191, 623, 1157, 1183, 1337, 2483, 8099, 15041, 16999, 17381, 32279, 105287, 118993, 220987, 225953, 1546909, 2872831, 20109817]

約数ペア:

[(1, 20109817), (7, 2872831), (13, 1546909), (89, 225953), (91, 220987), (169, 118993), (191, 105287), (623, 32279), (1157, 17381), (1183, 16999), (1337, 15041), (2483, 8099)]