28897071

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{19381}}^1$

素因数の和:19462

約数の個数: 16

約数和(自身を含む): 44656128

約数和(自身を除く): 15759057

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 19381, 58143, 135667, 407001, 1376051, 4128153, 9632357, 28897071]

約数ペア:

[(1, 28897071), (3, 9632357), (7, 4128153), (21, 1376051), (71, 407001), (213, 135667), (497, 58143), (1491, 19381)]