18513183

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{20639}}^1$

素因数の和:20678

約数の個数: 16

約数和(自身を含む): 27740160

約数和(自身を除く): 9226977

約数列:

[1, 3, 13, 23, 39, 69, 299, 897, 20639, 61917, 268307, 474697, 804921, 1424091, 6171061, 18513183]

約数ペア:

[(1, 18513183), (3, 6171061), (13, 1424091), (23, 804921), (39, 474697), (69, 268307), (299, 61917), (897, 20639)]