7987509

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{821}}^1$

素因数の和:897

約数の個数: 24

約数和(自身を含む): 12310272

約数和(自身を除く): 4322763

約数列:

[1, 3, 9, 23, 47, 69, 141, 207, 423, 821, 1081, 2463, 3243, 7389, 9729, 18883, 38587, 56649, 115761, 169947, 347283, 887501, 2662503, 7987509]

約数ペア:

[(1, 7987509), (3, 2662503), (9, 887501), (23, 347283), (47, 169947), (69, 115761), (141, 56649), (207, 38587), (423, 18883), (821, 9729), (1081, 7389), (2463, 3243)]