21681756

素因数分解:

$2^2\times 3^4\times {\mathrm{66919}}^1$

素因数の和:66935

約数の個数: 30

約数和(自身を含む): 56681240

約数和(自身を除く): 34999484

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 66919, 133838, 200757, 267676, 401514, 602271, 803028, 1204542, 1806813, 2409084, 3613626, 5420439, 7227252, 10840878, 21681756]

約数ペア:

[(1, 21681756), (2, 10840878), (3, 7227252), (4, 5420439), (6, 3613626), (9, 2409084), (12, 1806813), (18, 1204542), (27, 803028), (36, 602271), (54, 401514), (81, 267676), (108, 200757), (162, 133838), (324, 66919)]