18472503

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{691}}^1$

素因数の和:787

約数の個数: 32

約数和(自身を含む): 30115840

約数和(自身を除く): 11643337

約数列:

[1, 3, 7, 19, 21, 57, 67, 133, 201, 399, 469, 691, 1273, 1407, 2073, 3819, 4837, 8911, 13129, 14511, 26733, 39387, 46297, 91903, 138891, 275709, 324079, 879643, 972237, 2638929, 6157501, 18472503]

約数ペア:

[(1, 18472503), (3, 6157501), (7, 2638929), (19, 972237), (21, 879643), (57, 324079), (67, 275709), (133, 138891), (201, 91903), (399, 46297), (469, 39387), (691, 26733), (1273, 14511), (1407, 13129), (2073, 8911), (3819, 4837)]