21694263

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1\times {\mathrm{569}}^1$

素因数の和:822

約数の個数: 16

約数和(自身を含む): 29548800

約数和(自身を除く): 7854537

約数列:

[1, 3, 71, 179, 213, 537, 569, 1707, 12709, 38127, 40399, 101851, 121197, 305553, 7231421, 21694263]

約数ペア:

[(1, 21694263), (3, 7231421), (71, 305553), (179, 121197), (213, 101851), (537, 40399), (569, 38127), (1707, 12709)]