209611941

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{787}}^1\times {\mathrm{1153}}^1$

素因数の和:1961

約数の個数: 32

約数和(自身を含む): 349191168

約数和(自身を除く): 139579227

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 787, 1153, 2361, 3459, 5509, 8071, 8657, 12683, 16527, 24213, 25971, 38049, 60599, 88781, 181797, 266343, 907411, 2722233, 6351877, 9981521, 19055631, 29944563, 69870647, 209611941]

約数ペア:

[(1, 209611941), (3, 69870647), (7, 29944563), (11, 19055631), (21, 9981521), (33, 6351877), (77, 2722233), (231, 907411), (787, 266343), (1153, 181797), (2361, 88781), (3459, 60599), (5509, 38049), (8071, 25971), (8657, 24213), (12683, 16527)]