18203705

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2719}}^1$

素因数の和:2840

約数の個数: 16

約数和(自身を含む): 23761920

約数和(自身を除く): 5558215

約数列:

[1, 5, 13, 65, 103, 515, 1339, 2719, 6695, 13595, 35347, 176735, 280057, 1400285, 3640741, 18203705]

約数ペア:

[(1, 18203705), (5, 3640741), (13, 1400285), (65, 280057), (103, 176735), (515, 35347), (1339, 13595), (2719, 6695)]