197902419

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1$

素因数の和:728

約数の個数: 64

約数和(自身を含む): 334430208

約数和(自身を除く): 136527789

約数列:

[1, 3, 11, 13, 23, 31, 33, 39, 69, 93, 143, 253, 299, 341, 403, 429, 647, 713, 759, 897, 1023, 1209, 1941, 2139, 3289, 4433, 7117, 7843, 8411, 9269, 9867, 13299, 14881, 20057, 21351, 23529, 25233, 27807, 44643, 60171, 92521, 101959, 163691, 193453, 220627, 260741, 277563, 305877, 461311, 491073, 580359, 661881, 782223, 1383933, 2127983, 2868151, 5074421, 5997043, 6383949, 8604453, 15223263, 17991129, 65967473, 197902419]

約数ペア:

[(1, 197902419), (3, 65967473), (11, 17991129), (13, 15223263), (23, 8604453), (31, 6383949), (33, 5997043), (39, 5074421), (69, 2868151), (93, 2127983), (143, 1383933), (253, 782223), (299, 661881), (341, 580359), (403, 491073), (429, 461311), (647, 305877), (713, 277563), (759, 260741), (897, 220627), (1023, 193453), (1209, 163691), (1941, 101959), (2139, 92521), (3289, 60171), (4433, 44643), (7117, 27807), (7843, 25233), (8411, 23529), (9269, 21351), (9867, 20057), (13299, 14881)]