18723681

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2309}}^1$

素因数の和:2385

約数の個数: 24

約数和(自身を含む): 29189160

約数和(自身を除く): 10465479

約数列:

[1, 3, 9, 17, 51, 53, 153, 159, 477, 901, 2309, 2703, 6927, 8109, 20781, 39253, 117759, 122377, 353277, 367131, 1101393, 2080409, 6241227, 18723681]

約数ペア:

[(1, 18723681), (3, 6241227), (9, 2080409), (17, 1101393), (51, 367131), (53, 353277), (153, 122377), (159, 117759), (477, 39253), (901, 20781), (2309, 8109), (2703, 6927)]