18138965

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{1559}}^1$

素因数の和:1756

約数の個数: 16

約数和(自身を含む): 23587200

約数和(自身を除く): 5448235

約数列:

[1, 5, 13, 65, 179, 895, 1559, 2327, 7795, 11635, 20267, 101335, 279061, 1395305, 3627793, 18138965]

約数ペア:

[(1, 18138965), (5, 3627793), (13, 1395305), (65, 279061), (179, 101335), (895, 20267), (1559, 11635), (2327, 7795)]