21017332

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20287}}^1$

素因数の和:20335

約数の個数: 24

約数和(自身を含む): 43172864

約数和(自身を除く): 22155532

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 20287, 40574, 81148, 142009, 284018, 568036, 750619, 1501238, 3002476, 5254333, 10508666, 21017332]

約数ペア:

[(1, 21017332), (2, 10508666), (4, 5254333), (7, 3002476), (14, 1501238), (28, 750619), (37, 568036), (74, 284018), (148, 142009), (259, 81148), (518, 40574), (1036, 20287)]