209721567

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{5879}}^1$

素因数の和:5963

約数の個数: 32

約数和(自身を含む): 325140480

約数和(自身を除く): 115418913

約数列:

[1, 3, 11, 23, 33, 47, 69, 141, 253, 517, 759, 1081, 1551, 3243, 5879, 11891, 17637, 35673, 64669, 135217, 194007, 276313, 405651, 828939, 1487387, 3039443, 4462161, 6355199, 9118329, 19065597, 69907189, 209721567]

約数ペア:

[(1, 209721567), (3, 69907189), (11, 19065597), (23, 9118329), (33, 6355199), (47, 4462161), (69, 3039443), (141, 1487387), (253, 828939), (517, 405651), (759, 276313), (1081, 194007), (1551, 135217), (3243, 64669), (5879, 35673), (11891, 17637)]