31997007

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{26731}}^1$

素因数の和:26763

約数の個数: 24

約数和(自身を含む): 55602560

約数和(自身を除く): 23605553

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 26731, 80193, 187117, 240579, 507889, 561351, 1523667, 1684053, 3555223, 4571001, 10665669, 31997007]

約数ペア:

[(1, 31997007), (3, 10665669), (7, 4571001), (9, 3555223), (19, 1684053), (21, 1523667), (57, 561351), (63, 507889), (133, 240579), (171, 187117), (399, 80193), (1197, 26731)]