991389083447

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1\times {\mathrm{1663}}^1\times {\mathrm{4523}}^1$

素因数の和:7203

約数の個数: 32

約数和(自身を含む): 1194834001920

約数和(自身を除く): 203444918473

約数列:

[1, 7, 19, 133, 991, 1663, 4523, 6937, 11641, 18829, 31597, 31661, 85937, 131803, 221179, 601559, 1648033, 4482293, 7521749, 11536231, 31312627, 31376051, 52652243, 85163567, 142913231, 219188389, 596144969, 1000392617, 7454053259, 52178372813, 141627011921, 991389083447]

約数ペア:

[(1, 991389083447), (7, 141627011921), (19, 52178372813), (133, 7454053259), (991, 1000392617), (1663, 596144969), (4523, 219188389), (6937, 142913231), (11641, 85163567), (18829, 52652243), (31597, 31376051), (31661, 31312627), (85937, 11536231), (131803, 7521749), (221179, 4482293), (601559, 1648033)]