20173488129

素因数分解:

$3^4\times {\mathrm{179}}^1\times {\mathrm{277}}^1\times {\mathrm{5023}}^1$

素因数の和:5491

約数の個数: 40

約数和(自身を含む): 30419516160

約数和(自身を除く): 10246028031

約数列:

[1, 3, 9, 27, 81, 179, 277, 537, 831, 1611, 2493, 4833, 5023, 7479, 14499, 15069, 22437, 45207, 49583, 135621, 148749, 406863, 446247, 899117, 1338741, 1391371, 2697351, 4016223, 4174113, 8092053, 12522339, 24276159, 37567017, 72828477, 112701051, 249055409, 747166227, 2241498681, 6724496043, 20173488129]

約数ペア:

[(1, 20173488129), (3, 6724496043), (9, 2241498681), (27, 747166227), (81, 249055409), (179, 112701051), (277, 72828477), (537, 37567017), (831, 24276159), (1611, 12522339), (2493, 8092053), (4833, 4174113), (5023, 4016223), (7479, 2697351), (14499, 1391371), (15069, 1338741), (22437, 899117), (45207, 446247), (49583, 406863), (135621, 148749)]