19992249

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{313}}^1$

素因数の和:517

約数の個数: 24

約数和(自身を含む): 29782272

約数和(自身を除く): 9790023

約数列:

[1, 3, 9, 47, 141, 151, 313, 423, 453, 939, 1359, 2817, 7097, 14711, 21291, 44133, 47263, 63873, 132399, 141789, 425367, 2221361, 6664083, 19992249]

約数ペア:

[(1, 19992249), (3, 6664083), (9, 2221361), (47, 425367), (141, 141789), (151, 132399), (313, 63873), (423, 47263), (453, 44133), (939, 21291), (1359, 14711), (2817, 7097)]