18534411

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4391}}^1$

素因数の和:4471

約数の個数: 24

約数和(自身を含む): 31060224

約数和(自身を除く): 12525813

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 4391, 13173, 30737, 39519, 92211, 276633, 294197, 882591, 2059379, 2647773, 6178137, 18534411]

約数ペア:

[(1, 18534411), (3, 6178137), (7, 2647773), (9, 2059379), (21, 882591), (63, 294197), (67, 276633), (201, 92211), (469, 39519), (603, 30737), (1407, 13173), (4221, 4391)]