81923289

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 140797440

約数和(自身を除く): 58874151

約数列:

[1, 3, 7, 17, 21, 29, 41, 51, 87, 119, 123, 193, 203, 287, 357, 493, 579, 609, 697, 861, 1189, 1351, 1479, 2091, 3281, 3451, 3567, 4053, 4879, 5597, 7913, 8323, 9843, 10353, 14637, 16791, 20213, 22967, 23739, 24969, 39179, 55391, 60639, 68901, 95149, 117537, 134521, 141491, 166173, 229477, 285447, 403563, 424473, 666043, 688431, 941647, 1606339, 1998129, 2824941, 3901109, 4819017, 11703327, 27307763, 81923289]

約数ペア:

[(1, 81923289), (3, 27307763), (7, 11703327), (17, 4819017), (21, 3901109), (29, 2824941), (41, 1998129), (51, 1606339), (87, 941647), (119, 688431), (123, 666043), (193, 424473), (203, 403563), (287, 285447), (357, 229477), (493, 166173), (579, 141491), (609, 134521), (697, 117537), (861, 95149), (1189, 68901), (1351, 60639), (1479, 55391), (2091, 39179), (3281, 24969), (3451, 23739), (3567, 22967), (4053, 20213), (4879, 16791), (5597, 14637), (7913, 10353), (8323, 9843)]