18538163

素因数分解:

$7^1\times {\mathrm{29}}^2\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:179

約数の個数: 24

約数和(自身を含む): 22743552

約数和(自身を除く): 4205389

約数列:

[1, 7, 29, 47, 67, 203, 329, 469, 841, 1363, 1943, 3149, 5887, 9541, 13601, 22043, 39527, 56347, 91321, 276689, 394429, 639247, 2648309, 18538163]

約数ペア:

[(1, 18538163), (7, 2648309), (29, 639247), (47, 394429), (67, 276689), (203, 91321), (329, 56347), (469, 39527), (841, 22043), (1363, 13601), (1943, 9541), (3149, 5887)]