21967988

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{16693}}^1$

素因数の和:16751

約数の個数: 24

約数和(自身を含む): 44873472

約数和(自身を除く): 22905484

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 16693, 33386, 66772, 116851, 233702, 467404, 784571, 1569142, 3138284, 5491997, 10983994, 21967988]

約数ペア:

[(1, 21967988), (2, 10983994), (4, 5491997), (7, 3138284), (14, 1569142), (28, 784571), (47, 467404), (94, 233702), (188, 116851), (329, 66772), (658, 33386), (1316, 16693)]