21716487

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9769}}^1$

素因数の和:9807

約数の個数: 24

約数和(自身を含む): 35562800

約数和(自身を除く): 13846313

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 9769, 29307, 87921, 126997, 185611, 380991, 556833, 1142973, 1670499, 2412943, 7238829, 21716487]

約数ペア:

[(1, 21716487), (3, 7238829), (9, 2412943), (13, 1670499), (19, 1142973), (39, 556833), (57, 380991), (117, 185611), (171, 126997), (247, 87921), (741, 29307), (2223, 9769)]