28149051

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{70549}}^1$

素因数の和:70578

約数の個数: 16

約数和(自身を含む): 45152000

約数和(自身を除く): 17002949

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 70549, 211647, 493843, 1340431, 1481529, 4021293, 9383017, 28149051]

約数ペア:

[(1, 28149051), (3, 9383017), (7, 4021293), (19, 1481529), (21, 1340431), (57, 493843), (133, 211647), (399, 70549)]