21849369

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{1667}}^1$

素因数の和:1944

約数の個数: 16

約数和(自身を含む): 30984768

約数和(自身を除く): 9135399

約数列:

[1, 3, 17, 51, 257, 771, 1667, 4369, 5001, 13107, 28339, 85017, 428419, 1285257, 7283123, 21849369]

約数ペア:

[(1, 21849369), (3, 7283123), (17, 1285257), (51, 428419), (257, 85017), (771, 28339), (1667, 13107), (4369, 5001)]