21511994

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{32693}}^1$

素因数の和:32749

約数の個数: 16

約数和(自身を含む): 37663488

約数和(自身を除く): 16151494

約数列:

[1, 2, 7, 14, 47, 94, 329, 658, 32693, 65386, 228851, 457702, 1536571, 3073142, 10755997, 21511994]

約数ペア:

[(1, 21511994), (2, 10755997), (7, 3073142), (14, 1536571), (47, 457702), (94, 228851), (329, 65386), (658, 32693)]