218528401

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{1583}}^1$

素因数の和:1681

約数の個数: 32

約数和(自身を含む): 283143168

約数和(自身を除く): 64614767

約数列:

[1, 7, 13, 37, 41, 91, 259, 287, 481, 533, 1517, 1583, 3367, 3731, 10619, 11081, 19721, 20579, 58571, 64903, 138047, 144053, 409997, 454321, 761423, 843739, 2401411, 5329961, 5906173, 16809877, 31218343, 218528401]

約数ペア:

[(1, 218528401), (7, 31218343), (13, 16809877), (37, 5906173), (41, 5329961), (91, 2401411), (259, 843739), (287, 761423), (481, 454321), (533, 409997), (1517, 144053), (1583, 138047), (3367, 64903), (3731, 58571), (10619, 20579), (11081, 19721)]