21238690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{3643}}^1$

素因数の和:3714

約数の個数: 32

約数和(自身を含む): 42503616

約数和(自身を除く): 21264926

約数列:

[1, 2, 5, 10, 11, 22, 53, 55, 106, 110, 265, 530, 583, 1166, 2915, 3643, 5830, 7286, 18215, 36430, 40073, 80146, 193079, 200365, 386158, 400730, 965395, 1930790, 2123869, 4247738, 10619345, 21238690]

約数ペア:

[(1, 21238690), (2, 10619345), (5, 4247738), (10, 2123869), (11, 1930790), (22, 965395), (53, 400730), (55, 386158), (106, 200365), (110, 193079), (265, 80146), (530, 40073), (583, 36430), (1166, 18215), (2915, 7286), (3643, 5830)]