21383516

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{69427}}^1$

素因数の和:69449

約数の個数: 24

約数和(自身を含む): 46655616

約数和(自身を除く): 25272100

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 69427, 138854, 277708, 485989, 763697, 971978, 1527394, 1943956, 3054788, 5345879, 10691758, 21383516]

約数ペア:

[(1, 21383516), (2, 10691758), (4, 5345879), (7, 3054788), (11, 1943956), (14, 1527394), (22, 971978), (28, 763697), (44, 485989), (77, 277708), (154, 138854), (308, 69427)]