28631673

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 49510656

約数和(自身を除く): 20878983

約数列:

[1, 3, 7, 9, 21, 37, 63, 71, 111, 173, 213, 259, 333, 497, 519, 639, 777, 1211, 1491, 1557, 2331, 2627, 3633, 4473, 6401, 7881, 10899, 12283, 18389, 19203, 23643, 36849, 44807, 55167, 57609, 85981, 110547, 134421, 165501, 257943, 403263, 454471, 773829, 1363413, 3181297, 4090239, 9543891, 28631673]

約数ペア:

[(1, 28631673), (3, 9543891), (7, 4090239), (9, 3181297), (21, 1363413), (37, 773829), (63, 454471), (71, 403263), (111, 257943), (173, 165501), (213, 134421), (259, 110547), (333, 85981), (497, 57609), (519, 55167), (639, 44807), (777, 36849), (1211, 23643), (1491, 19203), (1557, 18389), (2331, 12283), (2627, 10899), (3633, 7881), (4473, 6401)]