8991997

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:181

約数の個数: 32

約数和(自身を含む): 11854080

約数和(自身を除く): 2862083

約数列:

[1, 7, 17, 19, 41, 97, 119, 133, 287, 323, 679, 697, 779, 1649, 1843, 2261, 3977, 4879, 5453, 11543, 12901, 13243, 27839, 31331, 67609, 75563, 92701, 219317, 473263, 528941, 1284571, 8991997]

約数ペア:

[(1, 8991997), (7, 1284571), (17, 528941), (19, 473263), (41, 219317), (97, 92701), (119, 75563), (133, 67609), (287, 31331), (323, 27839), (679, 13243), (697, 12901), (779, 11543), (1649, 5453), (1843, 4879), (2261, 3977)]