61391991

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:375

約数の個数: 32

約数和(自身を含む): 88865280

約数和(自身を除く): 27473289

約数列:

[1, 3, 23, 37, 69, 111, 139, 173, 417, 519, 851, 2553, 3197, 3979, 5143, 6401, 9591, 11937, 15429, 19203, 24047, 72141, 118289, 147223, 354867, 441669, 553081, 889739, 1659243, 2669217, 20463997, 61391991]

約数ペア:

[(1, 61391991), (3, 20463997), (23, 2669217), (37, 1659243), (69, 889739), (111, 553081), (139, 441669), (173, 354867), (417, 147223), (519, 118289), (851, 72141), (2553, 24047), (3197, 19203), (3979, 15429), (5143, 11937), (6401, 9591)]