1261896987

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1\times {\mathrm{1291}}^1$

素因数の和:1731

約数の個数: 32

約数和(自身を含む): 1844107776

約数和(自身を除く): 582210789

約数列:

[1, 3, 13, 39, 71, 213, 353, 923, 1059, 1291, 2769, 3873, 4589, 13767, 16783, 25063, 50349, 75189, 91661, 274983, 325819, 455723, 977457, 1191593, 1367169, 3574779, 5924399, 17773197, 32356333, 97068999, 420632329, 1261896987]

約数ペア:

[(1, 1261896987), (3, 420632329), (13, 97068999), (39, 32356333), (71, 17773197), (213, 5924399), (353, 3574779), (923, 1367169), (1059, 1191593), (1291, 977457), (2769, 455723), (3873, 325819), (4589, 274983), (13767, 91661), (16783, 75189), (25063, 50349)]