1998821812

素因数分解:

$2^2\times {\mathrm{13}}^3\times {\mathrm{19}}^1\times {\mathrm{11971}}^1$

素因数の和:12033

約数の個数: 48

約数和(自身を含む): 3989070400

約数和(自身を除く): 1990248588

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 169, 247, 338, 494, 676, 988, 2197, 3211, 4394, 6422, 8788, 11971, 12844, 23942, 41743, 47884, 83486, 155623, 166972, 227449, 311246, 454898, 622492, 909796, 2023099, 2956837, 4046198, 5913674, 8092396, 11827348, 26300287, 38438881, 52600574, 76877762, 105201148, 153755524, 499705453, 999410906, 1998821812]

約数ペア:

[(1, 1998821812), (2, 999410906), (4, 499705453), (13, 153755524), (19, 105201148), (26, 76877762), (38, 52600574), (52, 38438881), (76, 26300287), (169, 11827348), (247, 8092396), (338, 5913674), (494, 4046198), (676, 2956837), (988, 2023099), (2197, 909796), (3211, 622492), (4394, 454898), (6422, 311246), (8788, 227449), (11971, 166972), (12844, 155623), (23942, 83486), (41743, 47884)]