28947051

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2687}}^1$

素因数の和:2725

約数の個数: 40

約数和(自身を含む): 52039680

約数和(自身を除く): 23092629

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 399, 513, 567, 1197, 1539, 2687, 3591, 8061, 10773, 18809, 24183, 51053, 56427, 72549, 153159, 169281, 217647, 357371, 459477, 507843, 1072113, 1378431, 1523529, 3216339, 4135293, 9649017, 28947051]

約数ペア:

[(1, 28947051), (3, 9649017), (7, 4135293), (9, 3216339), (19, 1523529), (21, 1378431), (27, 1072113), (57, 507843), (63, 459477), (81, 357371), (133, 217647), (171, 169281), (189, 153159), (399, 72549), (513, 56427), (567, 51053), (1197, 24183), (1539, 18809), (2687, 10773), (3591, 8061)]