21349006

素因数分解:

$2^1\times 7^3\times {\mathrm{31121}}^1$

素因数の和:31144

約数の個数: 16

約数和(自身を含む): 37346400

約数和(自身を除く): 15997394

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 31121, 62242, 217847, 435694, 1524929, 3049858, 10674503, 21349006]

約数ペア:

[(1, 21349006), (2, 10674503), (7, 3049858), (14, 1524929), (49, 435694), (98, 217847), (343, 62242), (686, 31121)]