21000014

素因数分解:

$2^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{2693}}^1$

素因数の和:3259

約数の個数: 16

約数和(自身を含む): 36078048

約数和(自身を除く): 15078034

約数列:

[1, 2, 7, 14, 557, 1114, 2693, 3899, 5386, 7798, 18851, 37702, 1500001, 3000002, 10500007, 21000014]

約数ペア:

[(1, 21000014), (2, 10500007), (7, 3000002), (14, 1500001), (557, 37702), (1114, 18851), (2693, 7798), (3899, 5386)]