21017416

素因数分解:

$2^3\times 7^1\times {\mathrm{375311}}^1$

素因数の和:375324

約数の個数: 16

約数和(自身を含む): 45037440

約数和(自身を除く): 24020024

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 375311, 750622, 1501244, 2627177, 3002488, 5254354, 10508708, 21017416]

約数ペア:

[(1, 21017416), (2, 10508708), (4, 5254354), (7, 3002488), (8, 2627177), (14, 1501244), (28, 750622), (56, 375311)]