20347943

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{659}}^1$

素因数の和:1078

約数の個数: 16

約数和(自身を含む): 25470720

約数和(自身を除く): 5122777

約数列:

[1, 7, 11, 77, 401, 659, 2807, 4411, 4613, 7249, 30877, 50743, 264259, 1849813, 2906849, 20347943]

約数ペア:

[(1, 20347943), (7, 2906849), (11, 1849813), (77, 264259), (401, 50743), (659, 30877), (2807, 7249), (4411, 4613)]