19927959

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{433}}^1$

素因数の和:511

約数の個数: 24

約数和(自身を含む): 28800240

約数和(自身を除く): 8872281

約数列:

[1, 3, 23, 29, 69, 87, 433, 529, 667, 1299, 1587, 2001, 9959, 12557, 15341, 29877, 37671, 46023, 229057, 288811, 687171, 866433, 6642653, 19927959]

約数ペア:

[(1, 19927959), (3, 6642653), (23, 866433), (29, 687171), (69, 288811), (87, 229057), (433, 46023), (529, 37671), (667, 29877), (1299, 15341), (1587, 12557), (2001, 9959)]