21428454

素因数分解:

$2^1\times 3^1\times {\mathrm{389}}^1\times {\mathrm{9181}}^1$

素因数の和:9575

約数の個数: 16

約数和(自身を含む): 42971760

約数和(自身を除く): 21543306

約数列:

[1, 2, 3, 6, 389, 778, 1167, 2334, 9181, 18362, 27543, 55086, 3571409, 7142818, 10714227, 21428454]

約数ペア:

[(1, 21428454), (2, 10714227), (3, 7142818), (6, 3571409), (389, 55086), (778, 27543), (1167, 18362), (2334, 9181)]