21129934

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{28477}}^1$

素因数の和:28539

約数の個数: 16

約数和(自身を含む): 36907488

約数和(自身を除く): 15777554

約数列:

[1, 2, 7, 14, 53, 106, 371, 742, 28477, 56954, 199339, 398678, 1509281, 3018562, 10564967, 21129934]

約数ペア:

[(1, 21129934), (2, 10564967), (7, 3018562), (14, 1509281), (53, 398678), (106, 199339), (371, 56954), (742, 28477)]