18128488

素因数分解:

$2^3\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2549}}^1$

素因数の和:2689

約数の個数: 32

約数和(自身を含む): 39168000

約数和(自身を除く): 21039512

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 127, 254, 508, 889, 1016, 1778, 2549, 3556, 5098, 7112, 10196, 17843, 20392, 35686, 71372, 142744, 323723, 647446, 1294892, 2266061, 2589784, 4532122, 9064244, 18128488]

約数ペア:

[(1, 18128488), (2, 9064244), (4, 4532122), (7, 2589784), (8, 2266061), (14, 1294892), (28, 647446), (56, 323723), (127, 142744), (254, 71372), (508, 35686), (889, 20392), (1016, 17843), (1778, 10196), (2549, 7112), (3556, 5098)]