12784473

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:121

約数の個数: 56

約数和(自身を含む): 22034880

約数和(自身を除く): 9250407

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 71, 81, 117, 171, 213, 243, 247, 351, 513, 639, 729, 741, 923, 1053, 1349, 1539, 1917, 2223, 2769, 3159, 4047, 4617, 5751, 6669, 8307, 9477, 12141, 13851, 17253, 17537, 20007, 24921, 36423, 51759, 52611, 60021, 74763, 109269, 157833, 180063, 224289, 327807, 473499, 672867, 983421, 1420497, 4261491, 12784473]

約数ペア:

[(1, 12784473), (3, 4261491), (9, 1420497), (13, 983421), (19, 672867), (27, 473499), (39, 327807), (57, 224289), (71, 180063), (81, 157833), (117, 109269), (171, 74763), (213, 60021), (243, 52611), (247, 51759), (351, 36423), (513, 24921), (639, 20007), (729, 17537), (741, 17253), (923, 13851), (1053, 12141), (1349, 9477), (1539, 8307), (1917, 6669), (2223, 5751), (2769, 4617), (3159, 4047)]