21789121

素因数分解:

${\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1\times {\mathrm{229}}^1$

素因数の和:468

約数の個数: 16

約数和(自身を含む): 24094800

約数和(自身を除く): 2305679

約数列:

[1, 17, 29, 193, 229, 493, 3281, 3893, 5597, 6641, 44197, 95149, 112897, 751349, 1281713, 21789121]

約数ペア:

[(1, 21789121), (17, 1281713), (29, 751349), (193, 112897), (229, 95149), (493, 44197), (3281, 6641), (3893, 5597)]