20975292611

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1229}}^1\times {\mathrm{9871}}^1$

素因数の和:11139

約数の個数: 32

約数和(自身を含む): 27199334400

約数和(自身を除く): 6224041789

約数列:

[1, 7, 13, 19, 91, 133, 247, 1229, 1729, 8603, 9871, 15977, 23351, 69097, 111839, 128323, 163457, 187549, 303563, 898261, 1312843, 2124941, 2438137, 12131459, 17066959, 84920213, 157708967, 230497721, 1103962769, 1613484047, 2996470373, 20975292611]

約数ペア:

[(1, 20975292611), (7, 2996470373), (13, 1613484047), (19, 1103962769), (91, 230497721), (133, 157708967), (247, 84920213), (1229, 17066959), (1729, 12131459), (8603, 2438137), (9871, 2124941), (15977, 1312843), (23351, 898261), (69097, 303563), (111839, 187549), (128323, 163457)]