20199429

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:378

約数の個数: 32

約数和(自身を含む): 31207680

約数和(自身を除く): 11008251

約数列:

[1, 3, 9, 27, 41, 71, 123, 213, 257, 369, 639, 771, 1107, 1917, 2313, 2911, 6939, 8733, 10537, 18247, 26199, 31611, 54741, 78597, 94833, 164223, 284499, 492669, 748127, 2244381, 6733143, 20199429]

約数ペア:

[(1, 20199429), (3, 6733143), (9, 2244381), (27, 748127), (41, 492669), (71, 284499), (123, 164223), (213, 94833), (257, 78597), (369, 54741), (639, 31611), (771, 26199), (1107, 18247), (1917, 10537), (2313, 8733), (2911, 6939)]