18198225

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{2789}}^1$

素因数の和:2834

約数の個数: 36

約数和(自身を含む): 33731100

約数和(自身を除く): 15532875

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 145, 225, 261, 435, 725, 1305, 2175, 2789, 6525, 8367, 13945, 25101, 41835, 69725, 80881, 125505, 209175, 242643, 404405, 627525, 727929, 1213215, 2022025, 3639645, 6066075, 18198225]

約数ペア:

[(1, 18198225), (3, 6066075), (5, 3639645), (9, 2022025), (15, 1213215), (25, 727929), (29, 627525), (45, 404405), (75, 242643), (87, 209175), (145, 125505), (225, 80881), (261, 69725), (435, 41835), (725, 25101), (1305, 13945), (2175, 8367), (2789, 6525)]