18912764

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{907}}^1$

素因数の和:1325

約数の個数: 24

約数和(自身を含む): 35771568

約数和(自身を除く): 16858804

約数列:

[1, 2, 4, 13, 26, 52, 401, 802, 907, 1604, 1814, 3628, 5213, 10426, 11791, 20852, 23582, 47164, 363707, 727414, 1454828, 4728191, 9456382, 18912764]

約数ペア:

[(1, 18912764), (2, 9456382), (4, 4728191), (13, 1454828), (26, 727414), (52, 363707), (401, 47164), (802, 23582), (907, 20852), (1604, 11791), (1814, 10426), (3628, 5213)]