28188153

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23549}}^1$

素因数の和:23581

約数の個数: 24

約数和(自身を含む): 48984000

約数和(自身を除く): 20795847

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 23549, 70647, 164843, 211941, 447431, 494529, 1342293, 1483587, 3132017, 4026879, 9396051, 28188153]

約数ペア:

[(1, 28188153), (3, 9396051), (7, 4026879), (9, 3132017), (19, 1483587), (21, 1342293), (57, 494529), (63, 447431), (133, 211941), (171, 164843), (399, 70647), (1197, 23549)]