16921480

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3331}}^1$

素因数の和:3469

約数の個数: 32

約数和(自身を含む): 38384640

約数和(自身を除く): 21463160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 3331, 5080, 6662, 13324, 16655, 26648, 33310, 66620, 133240, 423037, 846074, 1692148, 2115185, 3384296, 4230370, 8460740, 16921480]

約数ペア:

[(1, 16921480), (2, 8460740), (4, 4230370), (5, 3384296), (8, 2115185), (10, 1692148), (20, 846074), (40, 423037), (127, 133240), (254, 66620), (508, 33310), (635, 26648), (1016, 16655), (1270, 13324), (2540, 6662), (3331, 5080)]