259791

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:238

約数の個数: 16

約数和(自身を含む): 403200

約数和(自身を除く): 143409

約数列:

[1, 3, 7, 21, 89, 139, 267, 417, 623, 973, 1869, 2919, 12371, 37113, 86597, 259791]

約数ペア:

[(1, 259791), (3, 86597), (7, 37113), (21, 12371), (89, 2919), (139, 1869), (267, 973), (417, 623)]