8889881

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 12192768

約数和(自身を除く): 3302887

約数列:

[1, 7, 11, 13, 77, 83, 91, 107, 143, 581, 749, 913, 1001, 1079, 1177, 1391, 6391, 7553, 8239, 8881, 9737, 11869, 15301, 62167, 83083, 97691, 107107, 115453, 683837, 808171, 1269983, 8889881]

約数ペア:

[(1, 8889881), (7, 1269983), (11, 808171), (13, 683837), (77, 115453), (83, 107107), (91, 97691), (107, 83083), (143, 62167), (581, 15301), (749, 11869), (913, 9737), (1001, 8881), (1079, 8239), (1177, 7553), (1391, 6391)]