81977077

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2789}}^1$

素因数の和:2845

約数の個数: 32

約数和(自身を含む): 112492800

約数和(自身を除く): 30515723

約数列:

[1, 7, 13, 17, 19, 91, 119, 133, 221, 247, 323, 1547, 1729, 2261, 2789, 4199, 19523, 29393, 36257, 47413, 52991, 253799, 331891, 370937, 616369, 688883, 900847, 4314583, 4822181, 6305929, 11711011, 81977077]

約数ペア:

[(1, 81977077), (7, 11711011), (13, 6305929), (17, 4822181), (19, 4314583), (91, 900847), (119, 688883), (133, 616369), (221, 370937), (247, 331891), (323, 253799), (1547, 52991), (1729, 47413), (2261, 36257), (2789, 29393), (4199, 19523)]