18131895

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{8573}}^1$

素因数の和:8631

約数の個数: 24

約数和(自身を含む): 32101056

約数和(自身を除く): 13969161

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 8573, 25719, 42865, 77157, 128595, 385785, 402931, 1208793, 2014655, 3626379, 6043965, 18131895]

約数ペア:

[(1, 18131895), (3, 6043965), (5, 3626379), (9, 2014655), (15, 1208793), (45, 402931), (47, 385785), (141, 128595), (235, 77157), (423, 42865), (705, 25719), (2115, 8573)]