20137131

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16823}}^1$

素因数の和:16855

約数の個数: 24

約数和(自身を含む): 34993920

約数和(自身を除く): 14856789

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 16823, 50469, 117761, 151407, 319637, 353283, 958911, 1059849, 2237459, 2876733, 6712377, 20137131]

約数ペア:

[(1, 20137131), (3, 6712377), (7, 2876733), (9, 2237459), (19, 1059849), (21, 958911), (57, 353283), (63, 319637), (133, 151407), (171, 117761), (399, 50469), (1197, 16823)]