21066866

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{2357}}^1$

素因数の和:2509

約数の個数: 16

約数和(自身を含む): 32681880

約数和(自身を除く): 11615014

約数列:

[1, 2, 41, 82, 109, 218, 2357, 4469, 4714, 8938, 96637, 193274, 256913, 513826, 10533433, 21066866]

約数ペア:

[(1, 21066866), (2, 10533433), (41, 513826), (82, 256913), (109, 193274), (218, 96637), (2357, 8938), (4469, 4714)]