21647976

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{128857}}^1$

素因数の和:128873

約数の個数: 32

約数和(自身を含む): 61851840

約数和(自身を除く): 40203864

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 128857, 257714, 386571, 515428, 773142, 901999, 1030856, 1546284, 1803998, 2705997, 3092568, 3607996, 5411994, 7215992, 10823988, 21647976]

約数ペア:

[(1, 21647976), (2, 10823988), (3, 7215992), (4, 5411994), (6, 3607996), (7, 3092568), (8, 2705997), (12, 1803998), (14, 1546284), (21, 1030856), (24, 901999), (28, 773142), (42, 515428), (56, 386571), (84, 257714), (168, 128857)]