20613945

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{7349}}^1$

素因数の和:7385

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 17488455

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 561, 935, 2805, 7349, 22047, 36745, 80839, 110235, 124933, 242517, 374799, 404195, 624665, 1212585, 1374263, 1873995, 4122789, 6871315, 20613945]

約数ペア:

[(1, 20613945), (3, 6871315), (5, 4122789), (11, 1873995), (15, 1374263), (17, 1212585), (33, 624665), (51, 404195), (55, 374799), (85, 242517), (165, 124933), (187, 110235), (255, 80839), (561, 36745), (935, 22047), (2805, 7349)]