18777265

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{16993}}^1$

素因数の和:17028

約数の個数: 16

約数和(自身を含む): 25694928

約数和(自身を除く): 6917663

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 16993, 84965, 220909, 288881, 1104545, 1444405, 3755453, 18777265]

約数ペア:

[(1, 18777265), (5, 3755453), (13, 1444405), (17, 1104545), (65, 288881), (85, 220909), (221, 84965), (1105, 16993)]