208558881

素因数分解:

$3^7\times {\mathrm{47}}^1\times {\mathrm{2029}}^1$

素因数の和:2097

約数の個数: 32

約数和(自身を含む): 319603200

約数和(自身を除く): 111044319

約数列:

[1, 3, 9, 27, 47, 81, 141, 243, 423, 729, 1269, 2029, 2187, 3807, 6087, 11421, 18261, 34263, 54783, 95363, 102789, 164349, 286089, 493047, 858267, 1479141, 2574801, 4437423, 7724403, 23173209, 69519627, 208558881]

約数ペア:

[(1, 208558881), (3, 69519627), (9, 23173209), (27, 7724403), (47, 4437423), (81, 2574801), (141, 1479141), (243, 858267), (423, 493047), (729, 286089), (1269, 164349), (2029, 102789), (2187, 95363), (3807, 54783), (6087, 34263), (11421, 18261)]