2151513

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:134

約数の個数: 48

約数和(自身を含む): 3983616

約数和(自身を除く): 1832103

約数列:

[1, 3, 7, 9, 13, 21, 37, 39, 63, 71, 91, 111, 117, 213, 259, 273, 333, 481, 497, 639, 777, 819, 923, 1443, 1491, 2331, 2627, 2769, 3367, 4329, 4473, 6461, 7881, 8307, 10101, 18389, 19383, 23643, 30303, 34151, 55167, 58149, 102453, 165501, 239057, 307359, 717171, 2151513]

約数ペア:

[(1, 2151513), (3, 717171), (7, 307359), (9, 239057), (13, 165501), (21, 102453), (37, 58149), (39, 55167), (63, 34151), (71, 30303), (91, 23643), (111, 19383), (117, 18389), (213, 10101), (259, 8307), (273, 7881), (333, 6461), (481, 4473), (497, 4329), (639, 3367), (777, 2769), (819, 2627), (923, 2331), (1443, 1491)]