1220667

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1571}}^1$

素因数の和:1618

約数の個数: 16

約数和(自身を含む): 1911552

約数和(自身を除く): 690885

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 1571, 4713, 10997, 32991, 58127, 174381, 406889, 1220667]

約数ペア:

[(1, 1220667), (3, 406889), (7, 174381), (21, 58127), (37, 32991), (111, 10997), (259, 4713), (777, 1571)]