21000388599

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{281}}^2\times {\mathrm{1019}}^1$

素因数の和:1616

約数の個数: 36

約数和(自身を含む): 31522865400

約数和(自身を除く): 10522476801

約数列:

[1, 3, 9, 29, 87, 261, 281, 843, 1019, 2529, 3057, 8149, 9171, 24447, 29551, 73341, 78961, 88653, 236883, 265959, 286339, 710649, 859017, 2289869, 2577051, 6869607, 8303831, 20608821, 24911493, 74734479, 80461259, 241383777, 724151331, 2333376511, 7000129533, 21000388599]

約数ペア:

[(1, 21000388599), (3, 7000129533), (9, 2333376511), (29, 724151331), (87, 241383777), (261, 80461259), (281, 74734479), (843, 24911493), (1019, 20608821), (2529, 8303831), (3057, 6869607), (8149, 2577051), (9171, 2289869), (24447, 859017), (29551, 710649), (73341, 286339), (78961, 265959), (88653, 236883)]