81129321

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5827}}^1$

素因数の和:5870

約数の個数: 48

約数和(自身を含む): 152740224

約数和(自身を除く): 71610903

約数列:

[1, 3, 7, 9, 13, 17, 21, 39, 51, 63, 91, 117, 119, 153, 221, 273, 357, 663, 819, 1071, 1547, 1989, 4641, 5827, 13923, 17481, 40789, 52443, 75751, 99059, 122367, 227253, 297177, 367101, 530257, 681759, 693413, 891531, 1287767, 1590771, 2080239, 3863301, 4772313, 6240717, 9014369, 11589903, 27043107, 81129321]

約数ペア:

[(1, 81129321), (3, 27043107), (7, 11589903), (9, 9014369), (13, 6240717), (17, 4772313), (21, 3863301), (39, 2080239), (51, 1590771), (63, 1287767), (91, 891531), (117, 693413), (119, 681759), (153, 530257), (221, 367101), (273, 297177), (357, 227253), (663, 122367), (819, 99059), (1071, 75751), (1547, 52443), (1989, 40789), (4641, 17481), (5827, 13923)]