21820648

素因数分解:

$2^3\times {\mathrm{653}}^1\times {\mathrm{4177}}^1$

素因数の和:4836

約数の個数: 16

約数和(自身を含む): 40986180

約数和(自身を除く): 19165532

約数列:

[1, 2, 4, 8, 653, 1306, 2612, 4177, 5224, 8354, 16708, 33416, 2727581, 5455162, 10910324, 21820648]

約数ペア:

[(1, 21820648), (2, 10910324), (4, 5455162), (8, 2727581), (653, 33416), (1306, 16708), (2612, 8354), (4177, 5224)]