21691677

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{60761}}^1$

素因数の和:60788

約数の個数: 16

約数和(自身を含む): 34998912

約数和(自身を除く): 13307235

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 60761, 182283, 425327, 1032937, 1275981, 3098811, 7230559, 21691677]

約数ペア:

[(1, 21691677), (3, 7230559), (7, 3098811), (17, 1275981), (21, 1032937), (51, 425327), (119, 182283), (357, 60761)]