18972657

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{503}}^1$

素因数の和:650

約数の個数: 32

約数和(自身を含む): 30965760

約数和(自身を除く): 11993103

約数列:

[1, 3, 9, 11, 27, 33, 99, 127, 297, 381, 503, 1143, 1397, 1509, 3429, 4191, 4527, 5533, 12573, 13581, 16599, 37719, 49797, 63881, 149391, 191643, 574929, 702691, 1724787, 2108073, 6324219, 18972657]

約数ペア:

[(1, 18972657), (3, 6324219), (9, 2108073), (11, 1724787), (27, 702691), (33, 574929), (99, 191643), (127, 149391), (297, 63881), (381, 49797), (503, 37719), (1143, 16599), (1397, 13581), (1509, 12573), (3429, 5533), (4191, 4527)]