87767289

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{7229}}^1$

素因数の和:7325

約数の個数: 24

約数和(自身を含む): 135345600

約数和(自身を除く): 47578311

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1349, 4047, 7229, 12141, 21687, 65061, 137351, 412053, 513259, 1236159, 1539777, 4619331, 9751921, 29255763, 87767289]

約数ペア:

[(1, 87767289), (3, 29255763), (9, 9751921), (19, 4619331), (57, 1539777), (71, 1236159), (171, 513259), (213, 412053), (639, 137351), (1349, 65061), (4047, 21687), (7229, 12141)]