21057106

素因数分解:

$2^1\times 7^1\times {\mathrm{971}}^1\times {\mathrm{1549}}^1$

素因数の和:2529

約数の個数: 16

約数和(自身を含む): 36158400

約数和(自身を除く): 15101294

約数列:

[1, 2, 7, 14, 971, 1549, 1942, 3098, 6797, 10843, 13594, 21686, 1504079, 3008158, 10528553, 21057106]

約数ペア:

[(1, 21057106), (2, 10528553), (7, 3008158), (14, 1504079), (971, 21686), (1549, 13594), (1942, 10843), (3098, 6797)]