20910825

素因数分解:

$3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2383}}^1$

素因数の和:2415

約数の個数: 48

約数和(自身を含む): 41386240

約数和(自身を除く): 20475415

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 117, 135, 195, 225, 325, 351, 585, 675, 975, 1755, 2383, 2925, 7149, 8775, 11915, 21447, 30979, 35745, 59575, 64341, 92937, 107235, 154895, 178725, 278811, 321705, 464685, 536175, 774475, 836433, 1394055, 1608525, 2323425, 4182165, 6970275, 20910825]

約数ペア:

[(1, 20910825), (3, 6970275), (5, 4182165), (9, 2323425), (13, 1608525), (15, 1394055), (25, 836433), (27, 774475), (39, 536175), (45, 464685), (65, 321705), (75, 278811), (117, 178725), (135, 154895), (195, 107235), (225, 92937), (325, 64341), (351, 59575), (585, 35745), (675, 30979), (975, 21447), (1755, 11915), (2383, 8775), (2925, 7149)]